The Power Products Male Elbow Brass Fitting is the perfect solution for air brake applications. It is approved for the majority of air brake applications, excluding installation from frame to axle and between towed and towing vehicles. It features fast syncing and cutting off and is D.O.T approved and marked. It offers superior flow compared to conventional compression fittings with inserts and is ideal for applications that must fit snugly beneath the dash. FleetPride is your First Click in Heavy Duty®.