Apollo™ Lead Free Backflow Preventer, Series: 4ALF-200, 1-1/2 in Nominal, 175 psi, 33 to 180 deg F, Reduced Pressure Backflow Type, Bronze Body, 18 in W x 9-7/8 in H
The Apollo™ Model RP4A and RPLF4A Lead Free Reduced Pressure Backflow Preventer A Series provide maximum protection of the potable water supply due to back-siphonage or backpressure from substances that are hazardous to the potable water supply. The top accessed modular check valve cartridges provide captured springs, replaceable seats, and reversible silicone seat discs.