Note: Tubing and connector must be assembled in place, or it maybe cause air leakage, When connected, press down the blue release ring, then push the hose to the connectors. Do not push hose to connectors directly. And need to cut the end of hose if the first connection isn't in place, all metal fittings threads need seal tape to avoid air leakage.
WYNNsky air line kit is designed for high-demand air tool users, different type connections allow customer to design and install your own personalized air system any way you want, which included 3/8 Inch ×60 Feet nylon tubing, T-connectors, unions, 90° L-type Elbow, shut-off valve, wall outlets, check valve, 1/4 Inch NPT male connectors, 1/4 Inch NPT female connectors, 1/4 Inch NPT female coupler, Inch NPT female plug, 3/8 Inch MNPT × 1/4 Inch FNPT Reducers, Clamps, tubing cutter