Tru-Flate 13-237 Coupler, I/M-Style, 3/8 in, FNPT, Brass

Adopted by most coupler manufacturers, this plug design is considered the industrial standard. It can be identified by the 3/16 in pilot and flat bottom V-shaped ball groove. Conforms to ANSI (NFPA) T3.20.14-1990 dimensions.