Our 1/4" quick connect air line fitting is ideal for enthusiasts who are building an air ride control system from scratch or have lost existing fittings. Of course, our air suspension kits include all of the fittings you need for a proper installation, but if you find yourself in need of more parts our materials are the best you can get. We supply only Department of Transportation (DOT) approved lines and fittings. The reliability of your air system can rest on even the smallest detail. We don't take any short cuts.