Mr. Heater® Propane 15" Pigtail Hose Assembly with 1/4" Inverted Male Flare works perfectly for connecting propane tanks to an auto-changeover 2-stage regulator. Features solid-brass fittings and hose material stretch-tested to 400 psi and pressure-tested to 600 psi.Manufacturer model #: F271158-15. Great for connecting propane tanks to auto-changeover 2-stage regulator Solid-brass fittings Hose material stretch-tested to 400 psi, pressure-tested to 600 psi