The Camco Olympian Propane Double-Stage Auto-Changeover Regulator is made for RVs with dual propane tank hookups. It maintains a constant gas pressure and automatically changes from the empty tank to the full one. It allows for the removal of the empty cylinder for refill without interrupting the propane supply. The inlet is a 1/4" SAE inverted flare and the outlet is a 3/8" NPT female.• Designed for RVs with dual propane tank hookups• Provides continuous propane supply without interruption• Automatically switches from empty tank to full tank• Ensures seamless propane flow even during tank swaps• Allows for easy removal of empty tank for refill• Maintains consistent gas pressure• Inlet connection: 1/4" SAE inverted flare• Outlet connection: 3/8" NPT female• Set at 11" of W/C, 5 PSI• CSA Approved; UL Listed Provides continuous propane supply without interruption Maintains consistent gas pressure 1/4"" SAE inverted flare inlet / 3/8"" NPT female outlet connections | Camco Olympian Propane Double-Stage Auto-Changeover Regulator, cCSAus