Watts RK757/757DCDA-CK2 21/2-4 - Part of the RK-757 Series ADA Pad This 1/2 by 1/2 IN

This 1/2 by 1/2 IN lead free dual check valve backflow preventer helps prevent the reverse flow of polluted water from entering into the drinking water supply at the service entrance or at individual outlets

ZB400E-2IP

This 1/4 inch lead free mini water pressure regulator is designed to reduce incoming water pressure to protect plumbing system components and reduce water consumption

it efficiently handles moderate water flows from driveways

The Zurn Z534 is a 12-inch diameter

Watts RK757/757DCDA-CK2 21/2-4 - Part of the RK-757 Series ADA Pad This 1/2 by 1/2 INThis second check repair kit provides all the parts necessary to repair or replace the second check on a 2 1 2 to 4 inch double check valve assembly backflow preventer, model 757, and double check detector assembly backflow preventer, model 757DCDA. This kit consist of a first check module, check module O ring, and red silicone disc elastomer. Features Factory replacement kit No special tools required for servicing All parts are made of high quality