the apollo® model rp4a/rplf4a lead free* & non-lead free series reduced pressure backflow preventers provide maximum protection against backsiphonage 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. this made in America assembly features ball valves with stainless steel handles and trim as standard and carries the five-year apollo® factory warranty.maximum protection against back-pressure/back-siphonagemodular check valve cartridges w/ easily replaced partsreversible/removable chloramine-resistant silicone seatslow head pressure losstop mounted test cocksthreaded testcock protectorsinternal sensing passagemodular captured spring relief valvelead free optionstandard with full port ball valves with stainless steel handlescorrosion resistant5 year warranty
