QD3L line of fluid couplings has M8 threads and 0.180-in. flow orifice. Made of 303 stainless steel with pressure rating of 500 psi while connected and 200 psi while disconnected or while connecting. Double shutoff design uses Viton or EPDM seals and minimizes space between the internal and external ends when connected to essentially eliminate any leakage when disconnecting.Beswick Engineering, (603) 433-1188, www.beswick.com