The RV propane regulator allows you to connect two propane tanks and automatically switches from the primary tank to the secondary tank when the primary is empty, and vice versa. An indicator light changes color to signal when a tank is empty and requires refilling. The regulator maintains consistent propane gas pressure for reliable and efficient performance. Propane Hose: The RV pigtail hose features an integrated propane tank gauge and is constructed with durable stainless steel braid. It is weather-resistant, aging-resistant, airtight, heat-resistant, and flexible. The gauge enables accurate level monitoring without shaking the tank and supports leak detection. This automatic switching low-pressure propane regulator with hose provides a safe and dependable propane supply for RVs, campers, and other propane-powered equipment. Specifications and Materials: The regulator and hose are made from high-quality, corrosion-resistant materials designed for long-term outdoor use. Primary cylinder capacity: 210,000 BTU/hr; secondary cylinder capacity: 130,000 BTU/hr. Dual-stage design. Inlet: 1/4-inch SAE inverted flare; outlet: 3/8-inch NPT female thread. Wide Application: This two-stage automatic changeover low-pressure propane regulator includes two 18-inch pigtail metering hoses and is suitable for RVs with dual propane tanks. It is compatible with a wide range of propane-powered equipment, offering a versatile and cost-effective solution. Ideal for both occasional and full-time RV users. Color: Silver Material: Brass, stainless steel, and reinforced rubber