Watts RK 757/757DCDA-CK1-RS - Part of the RK-757/757DCDA Series Z100F-4NH It has a balanced piston

It has a balanced piston design for applications to regulate pressure in systems that require a constant downstream and accurate flow performance

Light-duty square grate with ½″ slotted openings and anti-splash dome strainer

This 1 inch 2-piece full port lead free ball valve is used in commercial and industrial applications for pipe lines utilizing a full range of liquids and gases

This air gap splash guard is used with a 957AG air gap designed for a 2 1/2 to 10 inch reduced pressure zone assembly

and provides excellent puncture and tear resistance

Watts RK 757/757DCDA-CK1-RS - Part of the RK-757/757DCDA Series Z100F-4NH It has a balanced pistonThis first check repair kit provides all the parts necessary to repair or replace the first 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 Can be installed in either horizontal or vertical position Serviceable without