ISO Body Size : 1/2. Port Thread : 1/2 SAE (3/4-16 O-Ring Boss). This 1/2 coupler set consists of a male and female quick coupler. Benefits: Flush face valve design minimizes fluid loss and air inclusion. Locking sleeve to prevent accidental disconnection. Zinc-nickel plating provides superior corrosion resistance. Hardened steel construction with hardened sleeves. Allows for minimal pressure drops. Easy single-handed push-connect design. Nipple seal resists blow-outs. Interchangeable with other ISO 16028 standard couplings. Features: 5,076 PSI rating. 23.78 GPM Max Flow Rate. 12 GPM Nominal Flow Rate. Buna-N Seals with Teflon backup ring can operate up to 250° F. Female Face Diameter: 1.50 (38mm). Male Face Diameter: 0.94 (24.5mm). Female Length: 3.43 (87mm). Male Length: 2.87 (73mm). Hex: 1.42 (36mm). Connected Length: 5.61 (142mm).