Apollo Valves 1" Bronze FIP Reduced Pressure Backflow Preventer (Lead Free)

The Apollo® Series RP 4A Reduced Pressure Principle Backflow Preventer is designed to give maximum protection against backflow caused by either back-pressure or back-siphonage from substances that are hazardous. The durable but economical device is easily maintained in the line with modular check cartridge assemblies that require no special tools. It consists of two independently acting spring-loaded check valves with an automatic differential relief valve located between the check valves. All testcocks are mounted at the top of the unit to assure easy access during repair and maintenance when unit is installed in tight places. Features Maximum Protection Against Back-Pressure/Back-Siphonage Modular Check Valve Cartridges w/ Easily Replaced Parts Reversible/Removable Chloramine-Resistant Silicone Seat Discs Low Head Pressure Loss Top Mounted Test Cocks Threaded Testcock Protectors Internal Sensing Passage Modular Captured Spring Relief Valve ASSE 1013 CSA B64.4 Lead Free Option NSF 61/8/G/372 Federal Publi...