K-T Industrie's Industrial 3/8" Female NPT 1/4" Coupler provides durable, high-performance connectivity for pneumatic systems, featuring a 3/8" female NPT design that is fully interchangeable with most Automotive Standard Series couplers and plugs from other manufacturers. Built with zinc-plated solid brass bodies and sleeves, stainless steel springs, hardened steel locking balls and valves, and reliable Buna-N seals, this coupler ensures secure, leak-resistant operation. Its precision-machined bar stock construction delivers exceptional resistance to mechanical shock, making it an ideal choice for tough shop, garage, and industrial applications. | K-T Industries Industrial 3/8'' Female NPT 1/4'' Coupler