DOT ApprovedMeets D. O. T. FMVSS 571.106 approved, SAE J1131 air brake system requirements. For no air leakage, when installing our air suspension kit, please ensure that the cross section of the air line is smooth and flat, no gap, uneven, and the tube cannot be oval
Wide Application DOT brass push to connect fittings are suitable for automotive, semi truck trailers pneumatic and air brake systems such as air bag spring suspension line repair kits, and also can be used for brake air lines and other conventional nylon air lines