PACKAGE INCLUDE: 50 ft 1/4" dot air hose line, 2 pcs 1/4" brass tube tee fittings, 2 pcs 1/4" brass straight union connectors, 2 pcs 1/4" brass straight push & NPT thread, 2 pcs 1/4" 360-degree swivel elbows NPT thread, 2 pcs 1/4" inflation Schrader valves, 1 pc tube cutter, 1 pc Teflon tape PREMIUM DOT FITTINGS: CheeMuii DOT air hose fittings are made of high-quality CA360 brass, meet D.O.T. FMVSS 571.106 approved, SAE J1131 air brake system requirements, with corrosion resistance, high-temperature ductility, low permeability and long service life PREMIUM PA12 DOT AIR HOSE: CheeMuii DOT air lines are made of high-quality Polyamide 12 nylon, meet D.O.T. FMVSS 571.106 approved, SAE J844 air brake system requirements, with corrosion resistance, high-temperature ductility, high pressure resistance and long service life HIGH-STRENGTH AIR HOSE: CheeMuii reinforced pneumatic tubing has high impact and wear resistance, can withstand higher working pressure, and has a longer service life. At the same time, it has a certain degree of flexibility and can be easily bent to a certain extent without affecting normal use AIR SUSPENSION VALVE: CheeMuii 1/4" inflation Schrader valves are made of brass, which is durable and corrosion-resistant. Thread length: 3/4". Provide a manual inflation point to air spring suspension bags. Each expansion valve is equipped with a protective cap to prevent dirt and mud MAX WORKING INTENSITY: The DOT brass fittings and DOT air lines can be operated in pressures from vacuum to 500 PSI and in temperatures from -40°F to +248°F (-40°C to +120°C). Note: see the tubing manufacturer's recommendations for pressure and temperature mutations 【WIDE APPLICATION: The air hose & DOT fittings kit can be used for air suspension systems, perfect for semi truck/trailer/RV repair air line leak, also ideal for industrial workshops, daily garden or lawn mower repair, towing machine hose connection, etc CheeMuii 50 FT 1/4 DOT Air Line with 10 Pcs 1/4 Brass DOT Air Brake Line Fittings Kit 15 Meter 1/4" Pneumatic Tubing Kit for Air Bags Suspension Kit with 1/4" DOT Air Fittings and Schrader Valve PACKAGE INCLUDE: 50 ft 1/4" dot air hose line, 2 pcs 1/4" brass tube tee fittings, 2 pcs 1/4" brass straight union connectors, 2 pcs 1/4" brass straight push & NPT thread, 2 pcs 1/4" 360-degree swivel elbows NPT thread, 2 pcs 1/4" inflation Schrader valves, 1 pc tube cutter, 1 pc Teflon tape