Selling a brand new still in factory box Apollo 1” lead free Backflow Preventer for sprinkler system and I think it is also required if you use a septic system on city/community water supply. Don’t have to replace the unit on the house I sold, so no reason to leave it in the garage. Some specs from Apollo/Conbraco: “Apollo® 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. This Made in America assembly features ball valve shutoffs with stainless steel handles and nuts as standard” I paid close to $400 for it, local installers quoted me over $500 for just the part without installation. Selling for $240 cash only.