Zurn Industries Llc Zurn XT-18 4.5 Gallon Expansion Tank 3/4 In. MNPT p/n XT-18

ZURN 112-950XLT2 1-1/2 IN. FNPT X FNPT DOUBLE CHECK VALVE ASSEMBLY - 175 PSI - LEAD-FREE CAST BRONZE DESIGNED FOR INSTALLATION ON POTABLE WATER LINES TO PROTECT AGAINST BOTH BACKSIPHONAGE AND BACKPRESSURE OF POLLUTED WATER INTO THE POTABLE WATER SUPPLY. A TEST COCK PLUG IS PROVIDED TO PROTECTAGAINST FOULING CAUSED BY INSECTS DIRT AND DEBRIS. ASSEMBLY SHALL PROVIDE PROTECTION WHERE A POTENTIAL NON-HEALTH HAZARD EXISTS. STANDARDS COMPLIANCE UL STYLE""MARGIN-TOP0PX; PADDING-TOP 5PX; PADDING-BOTTOM 5PX;"" UNLESS OTHERWISE NOTED APPLIES TO 3/4"" THRU 2"" HORIZONTAL ASSE® LISTED 1015 (VERTICAL FLOW-UP1 1/4"" THRU 2"") IAPMO® LISTED CSA® CERTIFIED (VERTICAL FLOW-UP1 1/2"" & 2"") AWWA COMPLIANT C510 APPROVED BY THE FOUNDATION FOR CROSS CONNECTION CONTROL AND HYDRAULIC RESEARCH AT THE UNIVERSITY OF SOUTHERN CALIFORNIA NSF® LISTED - STANDARD 61 ANNEX G CERTIFIED TO NSF/ANSI 372 BY IAPMO R&T