The Milton Industries 5 In ONE Universal Safety Exhaust Couplers are designed to disconnect air connections is a safe manner. With disconnection utilizing a protective sleeve and a controlled release of air, users can quickly change out tools without the risk of hose whip that can cause injuries to the operator and damages to surrounding tools and products. The couplers feature a push-type connection, safety sleeve, national pipe thread fitting end, and a rugged steel body. They have a 200 psi maximum operating pressure and 225 degrees F maximum operating temperature. On larger sizes, the couplers have protective bumpers. The couplers are easy to install and can be used with multiple style plugs.