[Multiple Applications at Once]: The Supplies Propane Tank Y Adapter with Gauge includes dual fitting inlet and outlet end to connect 2 regulator appliances to 1 propane tank; Propane hose adapter made to fit QCC type 1 connections [Use Older Styles]: Propane fittings Y splitter converts old POL tank service valves to QCC1 new connection type 1 hoses and regulators; For 20 to 30-pound capacity tanks and gas grills, smokers, camp stoves, fire pit tables, generators [Instantly Read Propane Levels]: Save yourself from wasting propane as the permanently attached propane tank splitter 2 way adapter gauge is color-coded (green = gas, yellow = low gas, red = refill) to allow you to immediately see how much is in your tank [Ensure Safety]: Hose connection fitting enables gas flow and prevents leaks with disconnected hose; Check valve automatically cuts off gas flow when pressure is reached; Airtight seal between propane tank and gas appliance ensures safety when splitting gas [Trusted Quality]: Constructed of solid brass for maximum strength and longevity that provides an airtight connection and resists wear and tear; Propane bottle splitter includes 2 black plastic dust caps