Pigtail Propane Hose Connector is designed to connect a propane cylinder to an RV or trailer propane regulator. It has a ACME nut x 1/4" inverted male flare. It is rated for 200,000 BTUs per hour.
5' Propane Supply Hose connects a propane cylinder to any device that has a 1/4" inverted female flare connection. It has an Excess Flow Soft Nose POL x 1/4" Inverted Male Flare.