Mr. Heater 2-1/4 in. D x 3/8 in. D Brass Adjustable Pressure Regulator F273846

The Mr. Heater two stage auto-changeover regulator provides easy changeover from empty to full cylinder while providing adequate fuel to your RV. Features propane level indicator, dual 1/4 In. inverted female flare inlets x 3/8 In. female pipe outlet, and up to a 400,000 BTU max flow. CSA certified and includes backflow prevention fittings.