Tru-Flate design, also known as the automotive interchange. They have manual sleeves and are single shut off quick couplings. Couplers have an integral sleeve guard to resist accidental disconnection. The steel tubular valve delivers high air flow with minimal pressure drop. Quick Connect Couplers and Nipples are available in a range of sizes and materials to be versatile for use in a variety of applications with air or fluid pressures up to 300 psi.Tru-Flate design, also known as the automotive interchange. They have manual sleeves and are single shut off quick couplings. Couplers have an integral sleeve guard to resist accidental disconnection. The steel tubular valve delivers high air flow with minimal pressure drop. Quick Connect Couplers and Nipples are available in a range of sizes and materials to be versatile for use in a variety of applications with air or fluid pressures up to 300 psi.