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