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Your cart is empty.CheeMuii 50 FT 1/4 DOT Air Line 1/4" PA12 Nylon DOT Air Hose 15.2 Meter 1/4 Inch OD Air Tubing SAE J844 Air Brake Line for Semi Truck Trailer or Industrial Air System 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 flexibility, high-pressure resistance and long service life 1/4" TUBE WORKING INTENSITY: The 1/4" 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 and air brake systems, perfect for semi truck/trailer/RV/automotive/vehicle repair air line leak, also ideal for industrial workshops, daily garden or lawn mower repair, towing machine hose connection, etc