Mr. Heater 12-Feet Propane Hose Assembly, Soft Nose P.O.L. 1/4 by Inverted Male Flare Thread Excess Flow Soft Nose P.O.L. x .25 inch Inverted Male Flare Commonly used to connect an auxillary bulk propane tank to a motor home Hose material pressure tested to 600 psi Solid brass fittings Hose material stretch tested to 400 psi