Mr. Heater 20" Propane Hose Assembly with 1/4" Male Pipe Thread Acme Nut Acme Nut x .25 inch Male Pipe Thread Commonly used to connect a bulk cylinder on a camper to a regulator Hose material stretch tested to 400 psi Hose material pressure tested to 600 psi Solid brass fittings No tools needed to connect to tank Reinforced hose and brass fitting One Year Warranty 1/4" male pipe thread x QCC-1 type tank connection 18" Hose