Ensure a seamless propane supply with the Flame King Auto-Changeover LP Gas Regulators, designed to hook up to two propane tanks. Our innovative 2 stage propane regulator automatically switches over to the second tank once the first one runs out, allowing you to enjoy uninterrupted use. The color-changing indicator alerts you when a tank is depleted and needs refilling, ensuring you're always prepared. Featuring a 1/4 inch SAE inverted flare inlet and a 3/8" NPT female outlet, the propane tank regulator is both versatile and easy to install. Included are two 12-inch pigtails that connect the regulator to your propane tank or supply, allowing for hassle-free removal of the empty cylinder for refills without disrupting the gas flow. Perfect for RVs equipped with dual propane tanks, the auto-changeover regulator for propane tank automatically switches from the primary to the reserve tank when the primary tank is empty. The UL-listed Flame King propane regulators are rated for 345,200 BTU and pair well with our 48-inch thermoplastic hose. Their double-stage design maintains constant gas pressure under varying demands and conditions.