Gemels(R) SKU: NC03N050000. The Gemels(R) ISO 7241-B Series of quick disconnect couplers are used on a large spectrum of hydraulic applications with strenuous quality standards such as the aerospace, automotive, electronics, marine, industrial, heavy equipment, mining and drilling industries. Gemels(R) 1 NPT ISO 7241-B Quick Disconnect Hydraulic Male Couplers are recommended for general purpose, machine tools, mobile hydraulics, and other equipment applications. Our Series B couplers are interchangeable with all ISO 7241-B certified series hydraulic quick disconnect couplings. Body Size: 1 Body. Thread Size: 1 NPT Thread, Poppet Valve. Gemels(R) 1 NPT ISO 7241-B Body: Carbon Steel. Treatment: Galvanized. Radial Locking Balls. Self Sealing Poppet Valve Seals Excellent Under High and Low Pressures. Interchangeable with all ISO 7241 B series quick couplings. Features: 3625 PSI Rating. Max Flow Rate: 80 GPM. Male Face Diameter 1.49. Male Length: 2.6. Hex: 1.61. This 1/4 male coupler connects to its female equivalent.