Apollo RPDA-4ANLF-BFV-GPM 2 1/2" Reduced Pressure Detector Assembly

Apollo RPDA4ANLF lead free N pattern 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". The assembly has a gallon per minute metered bypas