Quick-connect propane hose assembly attaches directly to your Mr. Heater Big Buddy indoor/outdoor heater. Converts your heater for use with large propane tanks and eliminates the need for a filter. POL connects directly to a 20-lb. propane tank. Regulator reduces high pressure of 1.3 gallon tanks and larger to low pressure. Hand wheel for tightening; female connector fits any standard 3/8" male SAE fitting. 12' long.