PROFLO PFFCC is a 3/8-inch OD brass flare cap designed to close a compatible flare connection. The cap provides a secure termination point when a flare fitting needs to be sealed as part of an approved piping system. PROFLO specifies its brass flare fittings for fuel, oil, liquefied petroleum (LP), and natural gas lines. The fitting is designed for compatible aluminum, copper, brass, and welded steel tubing that can be flared. PFFCC is a practical service fitting for installers and technicians working with compatible flare-connected systems.