CONTINUING GUARANTY

TO:      WELLS FARGO BANK, NATIONAL ASSOCIATION

1.       GUARANTY; DEFINITIONS. In consideration of any credit or other financial accommodation heretofore, now or hereafter extended or made to EnviroStar, Inc., a Delaware corporation ("Borrower"), by WELLS FARGO BANK, NATIONAL ASSOCIATION ("Bank"), and for other valuable consideration, the undersigned TRI-STATE TECHNICAL SERVICES, INC., a Delaware corporation ("Guarantor"), jointly and severally unconditionally guarantees and promises to pay to Bank, after the occurrence and during the continuance of an Event of Default (as such term is defined in the Credit Agreement dated as of October 7, 2016 between Borrower and Bank, as amended by that certain Amendment to Credit Agreement and Other Loan Documents dated as of June 23, 2017, as amended by that certain Second Amendment to Credit Agreement and Other Loan Documents dated of even date herewith (as the same may be further amended or modified from time to time, the “Credit Agreement”) in lawful money of the United States of America and in immediately available funds, any and all Indebtedness of any of the Borrower to Bank, all without relief from valuation and appraisement laws as applicable. The term "Indebtedness" is used herein in its most comprehensive sense and includes any and all advances, debts, obligations and liabilities of Borrower, heretofore, now or hereafter made, incurred or created, whether voluntary or involuntary and however arising, whether due or not due, absolute or contingent, liquidated or unliquidated, determined or undetermined, including under any swap, derivative, foreign exchange, hedge, deposit, treasury management or other similar transaction or arrangement, and whether the Borrower may be liable individually or jointly with others, or whether recovery upon such Indebtedness may be or hereafter becomes unenforceable. This Guaranty is a guaranty of payment and not collection. Guarantor’s obligations under this Guaranty are secured by that certain Security Agreement dated of even date herewith from Borrower, Guarantor and certain other entities in favor of Bank.

2.       MAXIMUM LIABILITY; SUCCESSIVE TRANSACTIONS; REVOCATION; OBLIGATION UNDER OTHER GUARANTIES. This is a continuing guaranty and all rights, powers and remedies hereunder shall apply to all Indebtedness of the Borrower to Bank, whether now existing or hereafter arising, including that arising under successive transactions which shall either continue the Indebtedness, increase or decrease it, or from time to time create new Indebtedness after all or any prior Indebtedness has been satisfied, and notwithstanding the dissolution, liquidation or bankruptcy of the Borrower or Guarantor or any other event or proceeding affecting the Borrower or Guarantor. This Guaranty shall not apply to any new Indebtedness created after actual receipt by Bank of written notice of its revocation as to such new Indebtedness; provided however, that loans or advances made by Bank to the Borrower after revocation under commitments existing prior to receipt by Bank of such revocation, and extensions, renewals or modifications, of any kind, of Indebtedness incurred by the Borrower or committed by Bank prior to receipt by Bank of such revocation, shall not be considered new Indebtedness. Any such notice must be sent to Bank by registered U.S. mail, postage prepaid, addressed to its office at 333 SE 2^nd Avenue, 22^nd Floor, Miami, Florida 33131, or at such other address as Bank shall from time to time designate. Any payment by Guarantor shall not reduce Guarantor's maximum obligation hereunder unless written notice to that effect is actually received by Bank at or prior to the time of such payment. The obligations of Guarantor hereunder shall be in addition to any obligations of Guarantor under any other guaranties of any liabilities or obligations of the Borrower or any other persons heretofore or hereafter given to Bank unless said other guaranties are expressly modified or revoked in

writing; and this Guaranty shall not, unless expressly herein provided, affect or invalidate any such other guaranties.

3.       OBLIGATIONS JOINT AND SEVERAL; SEPARATE ACTIONS; WAIVER OF STATUTE OF LIMITATIONS; REINSTATEMENT OF LIABILITY. The obligations hereunder are joint and several and independent of the obligations of Borrower, and a separate action or actions may be brought and prosecuted against Guarantor whether action is brought against the Borrower or any other person, or whether the Borrower or any other person is joined in any such action or actions. Guarantor acknowledges that this Guaranty is absolute and unconditional, there are no conditions precedent to the effectiveness of this Guaranty, and this Guaranty is in full force and effect and is binding on Guarantor as of the date written below, regardless of whether Bank obtains collateral or any guaranties from others or takes any other action contemplated by Guarantor. To the extent permitted by applicable law, Guarantor waives the benefit of any statute of limitations affecting Guarantor's liability hereunder or the enforcement thereof, and Guarantor agrees that any payment of any Indebtedness or other act which shall toll any statute of limitations applicable thereto shall similarly operate to toll such statute of limitations applicable to Guarantor's liability hereunder. The liability of Guarantor hereunder shall be reinstated and revived and the rights of Bank shall continue if and to the extent for any reason any amount at any time paid on account of any Indebtedness guaranteed hereby is rescinded or must otherwise be restored by Bank, whether as a result of any proceedings in bankruptcy or reorganization or otherwise, all as though such amount had not been paid. The determination as to whether any amount so paid must be rescinded or restored shall be made by Bank in its sole discretion; provided however, that if Bank chooses to contest any such matter at the request of Guarantor, Guarantor agrees to indemnify and hold Bank harmless from and against all costs and expenses, including reasonable attorneys' fees, expended or incurred by Bank in connection therewith, including without limitation, in any litigation with respect thereto.

4.       AUTHORIZATIONS TO BANK. Guarantor authorizes Bank either before or after revocation hereof, without notice to or demand on Guarantor, and without affecting Guarantor's liability hereunder, from time to time to: (a) alter, compromise, renew, extend, accelerate or otherwise change the time for payment of, or otherwise change the terms of the Indebtedness or any portion thereof, including increase or decrease of the rate of interest thereon; (b) take and hold security for the payment of this Guaranty or the Indebtedness or any portion thereof, and exchange, enforce, waive, subordinate or release any such security; (c) apply such security and direct the order or manner of sale thereof, including without limitation, a non-judicial sale permitted by the terms of the controlling security agreement, mortgage or deed of trust, as Bank in its discretion may determine; (d) release or substitute any one or more of the endorsers or any other guarantors of the Indebtedness, or any portion thereof, or any other party thereto; and (e) apply payments received by Bank from the Borrower to any Indebtedness of the Borrower to Bank, in such order as Bank shall determine in its sole discretion, whether or not such Indebtedness is covered by this Guaranty, and Guarantor hereby waives any provision of law regarding application of payments which specifies otherwise. Bank may without notice assign this Guaranty in whole or in part. Upon Bank's request, Guarantor agrees to provide to Bank copies of Guarantor's financial statements.

5.       REPRESENTATIONS, WARRANTIES AND COVENANTS. Guarantor represents and warrants to Bank that: (a) this Guaranty is executed at Borrower’s request; (b) Guarantor shall not, without Bank's prior written consent, sell, lease, assign, encumber, hypothecate, transfer or otherwise dispose of all or a substantial or material part of Guarantor's assets other than in the ordinary course of Guarantor's business; (c) Bank has made no

representation to Guarantor as to the creditworthiness of the Borrower; and (d) Guarantor has established adequate means of obtaining from the Borrower on a continuing basis financial and other information pertaining to Borrower’s financial condition. Guarantor agrees to keep adequately informed from such means of any facts, events or circumstances which might in any way affect Guarantor's risks hereunder, and Guarantor further agrees that Bank shall have no obligation to disclose to Guarantor any information or material about the Borrower which is acquired by Bank in any manner. In addition, Guarantor hereby covenants and agrees to comply with all covenants applicable to Guarantor as set forth in the Credit Agreement dated of even date herewith between Borrower and Bank.

6.       BANK'S RIGHTS WITH RESPECT TO GUARANTOR'S PROPERTY IN BANK'S POSSESSION. In addition to all liens upon and rights of setoff against the monies, securities or other property of Guarantor given to Bank by law, Bank shall have a lien upon and a right of setoff against all monies, securities and other property of Guarantor now or hereafter in the possession of or on deposit with Bank, whether held in a general or special account or deposit or for safekeeping or otherwise, and every such lien and right of setoff may be exercised without demand upon or notice to Guarantor. No lien or right of setoff shall be deemed to have been waived by any act or conduct on the part of Bank, or by any neglect to exercise such right of setoff or to enforce such lien, or by any delay in so doing, and every right of setoff and lien shall continue in full force and effect until such right of setoff or lien is specifically waived or released by Bank in writing. Bank may exercise this remedy regardless of the adequacy of any collateral for the obligations of Guarantor to Bank and whether or not the Bank is otherwise fully secured.

7.       SUBORDINATION. Any Indebtedness of the Borrower now or hereafter held by Guarantor is hereby subordinated to the Indebtedness of Borrower to Bank. For purposes of this Section 7, “Indebtedness” shall not include Borrower’s obligations owed to Guarantor related to regularly scheduled lease or rental obligations to its shareholders pursuant to bona fide written leases (copies of which have been provided to Bank), ordinary compensation to its shareholders (which compensation does not constitute indebtedness), share issuances to its shareholders, post-closing adjustments to the purchase price owed to Guarantor under that certain asset purchase agreement entered into by Borrower, Guarantor and certain other parties thereto, and buyer and seller indemnifications under said asset purchase agreement. Such Indebtedness of Borrower to Guarantor is assigned to Bank as security for this Guaranty and the Indebtedness and, if Bank requests, shall be collected and received by Guarantor as trustee for Bank and paid over to Bank on account of the Indebtedness of Borrower to Bank but without reducing or affecting in any manner the liability of Guarantor under the other provisions of this Guaranty. Any notes or other instruments now or hereafter evidencing such Indebtedness of the Borrower to Guarantor shall be marked with a legend that the same are subject to this Guaranty and, if Bank so requests, shall be delivered to Bank. Bank is hereby authorized in the name of Guarantor from time to time to file financing statements and continuation statements and execute such other documents and take such other action as Bank deems necessary or appropriate to perfect, preserve and enforce its rights hereunder.

8.       REMEDIES; NO WAIVER. All rights, powers and remedies of Bank hereunder are cumulative. No delay, failure or discontinuance of Bank in exercising any right, power or remedy hereunder shall affect or operate as a waiver of such right, power or remedy; nor shall any single or partial exercise of any such right, power or remedy preclude, waive or otherwise affect any other or further exercise thereof or the exercise of any other right, power or remedy. Any waiver, permit, consent or approval of any kind by Bank of any breach of this Guaranty, or any such waiver of any provisions or conditions hereof, must be in writing and shall be effective only to the extent set forth in writing.

9.       COSTS, EXPENSES AND ATTORNEYS' FEES. Guarantor shall pay to Bank immediately upon demand the full amount of all payments, advances, charges, costs and expenses, including, to the extent permitted by applicable law, reasonable attorneys' fees (to include outside counsel fees), expended or incurred by Bank in connection with the enforcement of any of Bank’s rights, powers or remedies and/or the collection of any amounts which become due to Bank under this Guaranty, and the prosecution or defense of any action in any way related to this Guaranty, whether or not suit is brought, and if suit is brought, whether incurred at the trial or appellate level, in an arbitration proceeding or otherwise, and including any of the foregoing incurred in connection with any bankruptcy proceeding (including without limitation, any adversary proceeding, contested matter or motion brought by Bank or any other person) relating to Guarantor or any other person or entity, Notwithstanding anything in this Guaranty to the contrary, reasonable attorneys’ fees shall not exceed the maximum amount permitted by law. Whenever in this Guaranty Guarantor is obligated to pay for the attorneys’ fees of Bank, or the phrase “reasonable attorneys’ fees” or a similar phrase is used, it shall be Guarantor’s obligation to pay the attorneys’ fees actually incurred or allocated, at standard hourly rates, without regard to any statutory interpretation, which shall not apply, Guarantor hereby waiving the application of any such statute. Subject to any restrictions under applicable law pertaining to usury, all of the foregoing shall be paid by Guarantor with interest from the date of demand until paid in full at a rate per annum equal to the greater of any default rate applicable to the Borrower’s outstanding obligations under that certain Credit Agreement dated of even date herewith, or Bank’s Prime Rate in effect from time to time.

10.       SUCCESSORS; ASSIGNMENT. This Guaranty shall be binding upon and inure to the benefit of the heirs, executors, administrators, legal representatives, successors and assigns of the parties; provided however, that Guarantor may not assign or transfer any of its interests or rights hereunder without Bank's prior written consent. Guarantor acknowledges that Bank has the right to sell, assign, transfer, negotiate or grant participations in all or any part of, or any interest in, any Indebtedness of Borrower to Bank and any obligations with respect thereto, including this Guaranty. In connection therewith, Bank may disclose all documents and information which Bank now has or hereafter acquires relating to Guarantor and/or this Guaranty, whether furnished by Borrower, Guarantor or otherwise. Guarantor further agrees that Bank may disclose such documents and information to Borrower.

11.       AMENDMENT. This Guaranty may be amended or modified only in writing signed by Bank and Guarantor.

12.       APPLICATION OF SINGULAR AND PLURAL. In all cases where there is but a single Borrower, then all words used herein in the plural shall be deemed to have been used in the singular where the context and construction so require; and when there is more than one Borrower named herein, or when this Guaranty is executed by more than one Guarantor, the word "Borrower" and the word "Guarantor" respectively shall mean all or any one or more of them as the context requires.

13.       COUNTERPARTS; GOVERNING LAW. This Guaranty may be executed in as many counterparts as may be required to reflect all parties assent; all counterparts will collectively constitute a single agreement. This Guaranty shall be governed by and construed in accordance with the laws of the State of New York. but giving effect to federal laws applicable to national banks, without reference to the conflicts of law or choice of law principles thereof.

14.       GUARANTOR’S WAIVERS.

(a)       To the extent permitted under applicable law, Guarantor waives any right to require Bank to: (i) proceed against the Borrower or any other person; (ii) marshal assets or proceed against or exhaust any security held from the Borrower or any other person; (iii) give notice of the terms, time and place of any public or private sale or other disposition of personal property security held from the Borrower or any other person; (iv) take any other action or pursue any other remedy in Bank's power; or (v) make any presentment or demand for performance, or give any notices of any kind, including, without limitation, any notice of nonperformance, protest, notice of protest or notice of dishonor, notice of intention to accelerate or notice of acceleration hereunder or in connection with any obligations or evidences of indebtedness held by Bank as security for or which constitute in whole or in part the Indebtedness guaranteed hereunder, or in connection with the creation of new or additional Indebtedness; or (vi) set off against the Indebtedness the fair value of any real or personal property given as collateral for the Indebtedness (whether such right of setoff arises under statute or otherwise). In addition to the foregoing, Guarantor specifically waives any statutory right it might have to require Bank to proceed against Borrower or any collateral that secures the Indebtedness.

(b)       To the extent permitted under applicable law, Guarantor waives any defense to its obligations hereunder based upon or arising by reason of: (i) any disability or other defense of the Borrower or any other person; (ii) the cessation or limitation from any cause whatsoever, other than payment in full, of the Indebtedness of the Borrower or any other person; (iii) any lack of authority of any officer, director, partner, agent or any other person acting or purporting to act on behalf of the Borrower which is a corporation, partnership or other type of entity, or any defect in the formation of any such Borrower; (iv) the application by the Borrower of the proceeds of any Indebtedness for purposes other than the purposes represented by Borrower to, or intended or understood by, Bank or Guarantor; (v) any act or omission by Bank which directly or indirectly results in or aids the discharge of the Borrower or any portion of the Indebtedness by operation of law or otherwise, or which in any way impairs or suspends any rights or remedies of Bank against the Borrower; (vi) any impairment of the value of any interest in security for the Indebtedness or any portion thereof, including without limitation, the failure to obtain or maintain perfection or recordation of any interest in any such security, the release of any such security without substitution, and/or the failure to preserve the value of, or to comply with applicable law in disposing of, any such security; (vii) any modification of the Indebtedness, in any form whatsoever, including any modification made after revocation hereof to any Indebtedness incurred prior to such revocation, and including without limitation the renewal, extension, acceleration or other change in time for payment of, or other change in the terms of, the Indebtedness or any portion thereof, including increase or decrease of the rate of interest thereon; or (viii) or any requirement that Bank give any notice of acceptance of this Guaranty. Until all Indebtedness shall have been paid in full, Guarantor shall have no right of subrogation, and Guarantor waives any right to enforce any remedy which Bank now has or may hereafter have against the Borrower or any other person and waives any benefit of, or any right to participate in, any security now or hereafter held by Bank. To the fullest extent permitted by applicable law, Guarantor waives all rights of a surety and the benefits of any applicable suretyship law, statute or regulation, and without limiting any of the waivers set forth herein, Guarantor further waives, to the extent permitted under applicable law, any other fact or event that, in the absence of this provision, would or might constitute or afford a legal or equitable discharge or release of or defense to Borrower.

(c)       Guarantor further waives all rights and defenses Guarantor may have arising out of (i) any election of remedies by Bank, even though that election of remedies, such as a non-judicial foreclosure with respect to any security for any portion of the Indebtedness, destroys

Guarantor's rights of subrogation or Guarantor's rights to proceed against the Borrower for reimbursement, or (ii) any loss of rights Guarantor may suffer by reason of any rights, powers or remedies of the Borrower in connection with any anti-deficiency laws or any other laws limiting, qualifying or discharging Borrower’s Indebtedness, whether by operation of law or otherwise, including any rights Guarantor may have to claim a fair market credit with respect to a deficiency or have a fair market value hearing to determine the size of a deficiency following any foreclosure sale or other disposition of any real property security for any portion of the Indebtedness, and Guarantor waives any right Guarantor may have under any “one-action” rule. Guarantor further waives the benefit of any homestead, exemption or other similar laws.

15.       UNDERSTANDING WITH RESPECT TO WAIVERS; SEVERABILITY OF PROVISIONS. Guarantor warrants and agrees that each of the waivers set forth herein is made with Guarantor's full knowledge of its significance and consequences, and that under the circumstances, the waivers are reasonable and not contrary to public policy or law. If any waiver or other provision of this Guaranty shall be held to be prohibited by or invalid under applicable public policy or law, such waiver or other provision shall be ineffective only to the extent of such prohibition or invalidity, without invalidating the remainder of such waiver or other provision or any remaining provisions of this Guaranty.

16.       ARBITRATION.

(a)       Arbitration. The parties hereto agree, upon demand by any party, to submit to binding arbitration all claims, disputes and controversies between or among them (and their respective employees, officers, directors, attorneys, and other agents), whether in tort, contract or otherwise in any way arising out of or relating to this Guaranty and its negotiation, execution, collateralization, administration, repayment, modification, extension, substitution, formation, inducement, enforcement, default or termination. In the event of a court ordered arbitration, the party requesting arbitration shall be responsible for timely filing the demand for arbitration and paying the appropriate filing fee within 30 days of the abatement order or the time specified by the court. Failure to timely file the demand for arbitration as ordered by the court will result in that party’s right to demand arbitration being automatically terminated.

(b)       Governing Rules. Any arbitration proceeding will (i) proceed in a location in New York selected by the American Arbitration Association (“AAA”); (ii) be governed by the Federal Arbitration Act (Title 9 of the United States Code), notwithstanding any conflicting choice of law provision in any of the documents between the parties; and (iii) be conducted by the AAA, or such other administrator as the parties shall mutually agree upon, in accordance with the AAA’s commercial dispute resolution procedures, unless the claim or counterclaim is at least $1,000,000.00 exclusive of claimed interest, arbitration fees and costs in which case the arbitration shall be conducted in accordance with the AAA’s optional procedures for large, complex commercial disputes (the commercial dispute resolution procedures or the optional procedures for large, complex commercial disputes to be referred to herein, as applicable, as the “Rules”). If there is any inconsistency between the terms hereof and the Rules, the terms and procedures set forth herein shall control. Any party who fails or refuses to submit to arbitration following a demand by any other party shall bear all costs and expenses incurred by such other party in compelling arbitration of any dispute. Nothing contained herein shall be deemed to be a waiver by any party that is a bank of the protections afforded to it under 12 U.S.C. §91 or any similar applicable state law.

(c)       No Waiver of Provisional Remedies, Self-Help and Foreclosure. The arbitration requirement does not limit the right of any party to (i) foreclose against real or personal property

collateral; (ii) exercise self-help remedies relating to collateral or proceeds of collateral such as setoff or repossession; or (iii) obtain provisional or ancillary remedies such as replevin, injunctive relief, attachment or the appointment of a receiver, before during or after the pendency of any arbitration proceeding. This exclusion does not constitute a waiver of the right or obligation of any party to submit any dispute to arbitration or reference hereunder, including those arising from the exercise of the actions detailed in sections (i), (ii) and (iii) of this paragraph.

(d)       Arbitrator Qualifications and Powers. Any arbitration proceeding in which the amount in controversy is $5,000,000.00 or less will be decided by a single arbitrator selected according to the Rules, and who shall not render an award of greater than $5,000,000.00. Any dispute in which the amount in controversy exceeds $5,000,000.00 shall be decided by majority vote of a panel of three arbitrators; provided however, that all three arbitrators must actively participate in all hearings and deliberations. The arbitrator will be a neutral attorney licensed in New York or a neutral retired judge of the state or federal judiciary of New York, in either case with a minimum of ten years’ experience in the substantive law applicable to the subject matter of the dispute to be arbitrated. The arbitrator will determine whether or not an issue is arbitratable and will give effect to the statutes of limitation in determining any claim. In any arbitration proceeding the arbitrator will decide (by documents only or with a hearing at the arbitrator's discretion) any pre-hearing motions which are similar to motions to dismiss for failure to state a claim or motions for summary adjudication. The arbitrator shall resolve all disputes in accordance with the substantive law of New York and may grant any remedy or relief that a court of such state could order or grant within the scope hereof and such ancillary relief as is necessary to make effective any award. The arbitrator shall also have the power to award recovery of all costs and fees, to impose sanctions and to take such other action as the arbitrator deems necessary to the same extent a judge could pursuant to the Federal Rules of Civil Procedure, the corresponding rules of civil practice and procedure in New York or other applicable law. Judgment upon the award rendered by the arbitrator may be entered in any court having jurisdiction. The institution and maintenance of an action for judicial relief or pursuit of a provisional or ancillary remedy shall not constitute a waiver of the right of any party, including the plaintiff, to submit the controversy or claim to arbitration if any other party contests such action for judicial relief.

(e)       Discovery. In any arbitration proceeding, discovery will be permitted in accordance with the Rules. All discovery shall be expressly limited to matters directly relevant to the dispute being arbitrated and must be completed no later than 20 days before the hearing date. Any requests for an extension of the discovery periods, or any discovery disputes, will be subject to final determination by the arbitrator upon a showing that the request for discovery is essential for the party's presentation and that no alternative means for obtaining information is available.

(f)       Class Proceedings and Consolidations. No party hereto shall be entitled to join or consolidate disputes by or against others in any arbitration, except parties who have executed this Agreement or any other contract, instrument or document relating to any Indebtedness, or to include in any arbitration any dispute as a representative or member of a class, or to act in any arbitration in the interest of the general public or in a private attorney general capacity.

(g)       Payment Of Arbitration Costs And Fees. The arbitrator shall award all costs and expenses of the arbitration proceeding.

(h)       Miscellaneous. To the maximum extent practicable, the AAA, the arbitrators and the parties shall take all action required to conclude any arbitration proceeding within 180 days of

the filing of the dispute with the AAA or administrator. No arbitrator or other party to an arbitration proceeding may disclose the existence, content or results thereof, except for disclosures of information by a party required in the ordinary course of its business or by applicable law or regulation. If more than one agreement for arbitration by or between the parties potentially applies to a dispute, the arbitration provision most directly related to the documents between the parties or the subject matter of the dispute shall control. This arbitration provision shall survive termination, amendment or expiration of any of the documents or any relationship between the parties.

(i)       Small Claims Court. Notwithstanding anything herein to the contrary, each party retains the right to pursue in Small Claims Court any dispute within that court’s jurisdiction. Further, this arbitration provision shall apply only to disputes in which either party seeks to recover an amount of money (excluding attorneys’ fees and costs) that exceeds the jurisdictional limit of the Small Claims Court.

IN WITNESS WHEREOF, the undersigned Guarantor has executed this Guaranty, intending to be legally bound hereby, as of October 30, 2017.

TRI-STATE TECHNICAL SERVICES, INC., a Delaware corporation

By:  /s/ Henry M. Nahmad                          

Henry M. Nahmad, President