This 1 by 1 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. The valve consists of a lead-free brass body construction, with two plastic replaceable check valves and stainless steel springs. It is designed for non-health hazard residential water system containment, continuous pressure applications and is to be installed immediately downstream of the residential water meter, in a vertical or horizontal position. The minimum working pressure is 10 PSI and maximum working pressure is 175 PSI.

Watts LF7R Residential Dual Check Valve Backflow Preventer, 1 X 1 IN Nominal, FNPT X FNPT Connection, 150 PSI, 33 - 180 DEG F, Brass Body, EPDM Seat, Industry Standards: ASSE 1024, ANSI/ASSE Standard 1024, BAA Compliant, cCSAus Certified, UPC, 3-7/8 IN Width, 1-7/8 IN Height, Lead Free: Yes, Additional Specifications: Disc Material: Santoprene, 0.8 LB Weight

• Lead-free brass body for durability
• Can be installed vertically or horizontally
• Compact design

• Installation Instruction Name https://www.macombgroup.com//ASSETS/DOCUMENTS/ITEMS/EN/WATTSLF71_Inst.pdf
• Specification Name https://www.macombgroup.com//ASSETS/DOCUMENTS/ITEMS/EN/WATTSLF71_Spec.pdf