Tap into an auxiliary propane cylinder without disconnecting your existing setup. The Mr. Heater F273733 Stay-A-While kit gives you a ready-to-use 5-foot flexible pigtail hose paired with the Stay-A-While propane tee -- so you can run a secondary cylinder alongside your RV's onboard propane supply. Solid brass fittings throughout and a hose tested to 600 PSI mean this is a safe, durable solution for camp-ready propane expansion.
Whether you're boondocking for a week or just tired of swapping tanks mid-trip, the Stay-A-While system is designed to let you add a standard 1 lb. throwaway cylinder or connect a larger auxiliary tank through a POL fitting -- all while staying plumbed into your RV's existing low-pressure propane system via the 1/4" inverted flare port.
The kit arrives as a complete assembly. The 5-foot flexible hose gives you enough reach to position a portable cylinder nearby without stress on the fittings. The Stay-A-While tee handles the connection routing, so no additional adapters are required for most standard setups.
The Stay-A-While tee accepts both a 1 lb. throwaway cylinder (1"-20 male thread) and a standard POL fitting, so you can run an auxiliary tank while staying tied into your RV system.
The hose is stretch tested to 400 PSI and pressure tested to 600 PSI -- well above typical low-pressure propane operating ranges for RV appliances.
Every connection point on this kit uses solid brass construction for corrosion resistance and reliable, gas-tight seals in outdoor and seasonal environments.
Five feet of flexible hose gives you practical positioning range for a portable or auxiliary cylinder -- reducing strain on fittings and making hookup easier in tight campsites.
The Stay-A-While tee is the heart of this kit. It serves as a manifold with four connection points: