This 3/4 IN lead-free reduced pressure zone backflow preventer assembly with its exclusive design incorporating the patented air in and water out principle for protection during an emergency condition prevents the flow of polluted water from entering into the potable water supply due to back siphonage and or back pressure in accordance with national plumbing codes and water authority requirements. Its compact modular design facilitates easy maintenance for in-line repairs. It can be installed horizontal or vertical without the need of any special tools. It is ideal for protection in continuous pressure piping applications and at cross connections identified as health hazards and from other contaminants found at the service line entrance. This assembly consists of a bronze body, 1/4 turn ball valve shut-off with tee handles, check modules, replaceable seats, top-mounted test cocks and a pressure differential relief valve.

Watts LF909 Small Reduced Pressure Zone Backflow Preventer Assembly, 3/4 X 3/4 IN Nominal, FNPT X FNPT Connection, 175 PSI, 33 - 140 DEG F, Bronze Body, Plastic Seat, Industry Standards: AWWA C511-92, ASSE 1013, cCSAus B64.4 Certified, NSF Certified, UPC, 18-1/16 IN Width, 9-7/8 IN Height, Lead Free: Yes, Additional Specifications: Disc Material: Silicone, 15.6 LB Weight

• Unique patented air in and water out design provides high-capacity relief valve discharge performance during emergency conditions
• Compact for easy installation
• 1/4 turn ball valves with tee handles
• Single access cover
• Horizontal or vertical (up or down) installation
• Top-mounted test cocks
• No special tools are required for servicing
• Replaceable seats

• Installation Instruction Name https://macombstage.cimm2.com//ASSETS/DOCUMENTS/ITEMS/EN/WATTSLF909QT34_Inst.pdf
• Specification Name https://macombstage.cimm2.com//ASSETS/DOCUMENTS/ITEMS/EN/WATTSLF909QT34_Spec.pdf