The Reduced Pressure Principle Backflow Preventer shall be Stainless Steel, certified to NSF/ANSI/CAN 61, ASSE® Listed 1013, rated to 180°F and supplied with full port ball valves. The main body shall be Nylon and the seat disc elastomers shall be silicone. If installed indoors, the installation shall be supplied with an air gap adapter. The Reduced Pressure Principle Backflow Preventer shall be a ZURN WILKINS Model 375ST.
Compliance:
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