Camco's RV 90 degree Brass Propane Tee with 12' propane hose connects to a motorhome or RV trailer propane cylinder to allow the connection of an additional propane appliance. It is for use on RVs with 20 lb or 30 lb supply tanks. It has a Type 1 ACME nut x Female POL and Male ACME thread x 1" -20 male throwaway cylinder thread. The 12' propane hose has a male x female 1" - 20 female throwaway cylinder threads.