Gemels(R) SKU: NC03N030000. The Gemels(R) ISO 7241-B Series quick disconnect couplers are commonly used in hydraulic applications that demand high-quality standards, such as aerospace, automotive, electronics, marine, industrial, heavy equipment, mining, and drilling. Gemels(R) 1/2 NPT ISO 7241-B Quick Disconnect Hydraulic Male Couplers are perfect for general-purpose tasks, machine tools, and mobile hydraulics. Additionally, our Series B couplers are fully compatible with all ISO 7241-B certified quick disconnect couplings. Body Size: 1/2 Body. Thread Size: 1/2 NPT Thread, Poppet Valve. Gemels(R) 1/2 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: 6090 PSI Rating. Max Flow Rate: 18 GPM. Male Face Diameter .93. Male Length: 1.73. Hex: 1.06. This 1/2 male coupler connects to its female equivalent.