1/4″ Male NPT x 1/4″ Female NPT Straight Pipe Adapter Plated Steel 5405-04-04
(NPT) National Pipe Thread. The NPTF is a dryseal thread. 1/4″ MALE PIPE to 1/4″ FEMALE PIPE STRAIGHT ADAPTER. (SIZE 2) 1/4″ FEMALE PIPE NPTF (-04). (SIZE 1) 1/4″ MALE PIPE NPTF (-04). National Pipe Tapered Fuel (NPTF).