Camco 30 inch Propane Pigtail Male inverted Flare #59163 Camco 30 inch Pigtail Propane Hose Connector with Male Inverted Flare. For connecting propane cylinder to RV or trailer propane regulator. Rated for 200000 BTUs per hour. Provides thermal protection in case of fire and excess flow protection in case of broken gas line. Type 1 ACME nut x 1/4 inch inverted male flare. Clamshell packaged.