ISO Body Size: 1. Port Thread: 1 SAE (1-5/16 O-Ring Boss). This 1 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. 97 GPM Max Flow Rate. 50 GPM Nominal Flow Rate. Buna-N Seals with Teflon backup ring can operate up to 250° F. Female Face Diameter: 2.17 (55mm). Male Face Diameter: 1.42 (36mm). Female Length: 4.31 (109mm). Male Length: 3.54 (90mm). Hex: 2.17 (55mm). Connected Length: 6.97 (177mm). Includes: 1 Female Coupler, 1 Male Coupler.