RVIA Regulator With Cover Cavagna Automatic Changeover Gas Regulator - 10mm Outlet RVIA Approved Propane Regulator Safety features include a built-in back check valve allowing empty cylinder removal and refill while reserve cylinder remains operational, as well as an Excess Flow Device and Overpressure Protection Device. Suburban's Automatic Changeover Regulator automatically switches from empty service cylinder to full reserve cylinder, ensuring continuous gas flow to appliances. A highly visible full/empty indicator signals refill The Suburban LP-R924 has adjustable pressure setting and a high temperature-resistant diaphragm with a capacity of 160,000 BTU/hour. Two-Stage Regulator Kit, Vertical Vent - Suburban Automatically switches from empty service cylinder to full reserve cylinder, ensuring continuous gas flow to appliances It is UL listed for safety. Semi automatic Changeover Panel 2 Cylinder Gas Regulator The Suburban LP-R924 Automatic Changeover Regulator is designed for safe and convenient switching between propane gas supply cylinders in your RV or motorhome. The kit includes an already assembled mounting bracket and plastic vent cover required by RVIA for easy installation. A highly visible indicator signals the need for refill, visible from the top through the propane tank cover lid, eliminating the need to remove the entire cover.