·124 PCS PACKAGE INCLUDE: 50 ft 1/2" DOT air line, 50 ft 3/8" DOT air line, 50 ft 1/4" DOT air line, 50 ft 1/8" DOT air line, 6 pcs brass tube tee fittings, 32 pcs brass straight union, 20 pcs brass straight push & NPT thread, 16 pcs 90°elbows NPT thread, 2 pcs 360° swivel elbows NPT thread, 4 pcs brass 1/4" inflation Schrader valve, 12 pcs bushing, 25 pcs sleeve ferrule, 2 pcs tube cutter,1 pc Teflon tape

·PREMIUM BRASS DOT AIR FITTINGS: DOT air line 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: 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: 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

·4 ROLL 50 FT AIR LINE TUBING: The 1/8" 1/4" 3/8" 1/2" DOT air lines can be operated in pressures from vacuum to 500/800 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

·AIR SUSPENSION VALVE: 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