This series of couplers are the most common quick connect couplers used in the agriculture, construction and logging industries. They are interchangeable with all ISO 5675 series including ball seat valve, poppet seal, push-pull couplings. ISO Body Size : 1/4. Port Thread : 1/4 NPT. Benefits: General purpose. Agriculture poppet type. Radial locking balls. Manual connect and disconnec.t Easy single-handed push-connect design. Nipple seal resists blow-outs. Interchangeable with other ISO 5675 standard couplings. This 1/4 poppet style female coupler connects to its male equivalent . Features: 5100 PSI Rating. 6.34 GPM Max Flow. 3.2 GPM Nominal Flow Rate. Female Face Diameter: 1.026 (26mm). Female Length: 1.931 (49mm). Hex: .751 (19mm). Includes : 1 Female Coupler, 1 Female Dust Cap.