74Pcs Dot Air Brake Line Fittings,Brass Compression Air Nylon Tubing Fittings ?DOT FITTINGS SET?:The dot air brake fittings kit package includes 74pcs : 13pcs union connectors,5pcs tube tees,10pcs 90elbows NPT Thread,4pcs 45elbows NPT Thread,10pcs straight male connectors NPT Thread, 4pcs hex bushing,2pcs schrader valve,26pcs sleeves ferrules,1pc 4m teflon tape. ?PREMIUM MATERIAL??Our DOT air brake fittings are made of high-quality CA360 brass, Meet D.O.T FMVSS 571.106, Air Brake system Requirements, with corrosion resistance, high-temperature ductility, and low permeability. Great for long-time use, dot air brake fitting type: 1/8",1/4",3/8",1/2",5/8". ?PRESSURE RANGE?: Air line fittings pressure resistance, not easy to trip. Air brake fittings working pressure from vacuum max to 300 PSI. Temperature Range: -65 F to +200 F(Note: see tubing manufacturer?s recommendations for pressure and temperature mutations) ?EASY TO INSTALL?: Our dot air fitting kit quicks disconnect push tubing in, you need to use tools to fix loose parts to handle in tight places so that use will be firmer and not easy to fall off. And pieces that contain a threaded end already have sealant pre-applied to provide a secure connection. ?TYPICAL APPLICATION??Air brake fittings assortment kit can be used with air systems, copper tubing in airline brake systems, which is perfect for automotive car or truck repair, air operated seats, operating gauges, air horns, industrial workshops, air brake connections, towing machine hose connection and air brake connections or lawn mower repair.