Excess flow P.O.L. x 1 in -20 male throwaway cylinder thread x acme thread female P.O.L. Conveniently use camper and trailer propane supply for lanterns, tabletop barbecue, etc., at parks, campsites, and rest stops. Use with hose assembly F273711 (Orgill Sku No. 258.0256), F273701 (Orgill Sku No. 999.8113), and F273702 (Orgill Sku No. 620.3814). Also use with F273710.