This Straight Thru-Panel Adapter fitting is 1/4-18 NPSM (National Pipe Straight Male) in the middle to fit with the included 1/4-18 NPSF Hex Nut, and 3/8" OD Hose-Barb on each end to fit with 3/8" ID hose or tubing. The 1/4-18 NPSM will fit through about a 1/2" bore hole, to sit up with the flange, and be secured with the Hex Nut on the other side. Both the fitting and the hex nut are made from Black Nylon.

This is a multi-purpose fittings and may possibly be used for Freshwater Wash-Down Systems, Automotive, Boat (Marine), Hydroponic, Irrigation, Pneumatic, Agriculture, and Aquarium application.