Apollo RP-4ALF-BFV 4" Reduced Pressure Valve

Apollo RP4ALF lead free is an assembly that is made to prevent contamination of the potable water supply due to back-siphonage or backpressure. The assembly is made for domestic stainless steel body for 2 1/2"-8" and fusion bonded xpoxy ductile iron for 10" & 12".