Product updated on 2021-03-19, Air liftAIR:21830, Elbow fitting - Male 1/4 NPT x 1/4 Tube, Accessory or Replacement fitting, Airlift supplies various air overload kit accessories such as air lines, fittings, compressors and controllers. These accessories can be a big help when installing or repairing an air overload system with leaks or other problems