Propane Double-Stage Auto Changeover Regulator, Ccsaus, Clam

Gets continuous gas supply by automatically changing to a reserve cylinder when the service cylinder is empty. Allows removal of empty cylinder for refill without interrupting propane supply. For RV's with dual propane tank hookup. Inlet: 1/4 SAE inverted flare. Outlet: 3/8 NPT female. Maintains a constant 11 WC propane pressure. 1 year warranty. 1 per pack.