78Pcs Brass Pipe Fittings Assortment Kit Npt Adapter, Hex Nipple, Hex Coupling, ?78 PCS PACKAGE?-Pipe Fittings Assortment Kit includes: 11Pcs NPT Female Coupling:1/8",1/4",3/8",1/2";6Pcs Reducing Coupling Extension Adapter:1/4"x 1/8",3/8"x 1/8",3/8"x 1/4";11Pcs NPT Male to Female Adapter:1/8"x 1/8",1/4"x 1/4",3/8"x 3/8" ,1/2"x 1/2";11Pcs NPT Reducing Hex Nipple:1/8"x 1/8",1/4"x 1/4",3/8"x 3/8" ,1/2"x 1/2";10Pcs Close Nipple:1/8",1/4";12Pcs NPT Hex Bushing;16Pcs NPT Cored Hex Head Plug:1/8",1/4",3/8",1/2",1pc teflon tape. ?SOLID BRASS QUALITY MATERIAL?- Brass fitting assortment kit are made of high-quality CA360 brass, with corrosion resistance, high-temperature ductility, low permeability and hose clamps are constructed from resilient stainless steel,long service life.?Note?NPT female size ?Compression UNF male size. ). ?NO LEAKING EASY TO INSTALL?- Brass Pipe Fittings kit are smooth overall without burrs and accurate NPT threading, teflon Tape winding thread provides better sealing effect,the pipe fitting together tightly not easy to leak during the connection process. (NOTE: Brass Pipe Fitting is not suitable for potable water). ?PRESSURE RANGE?- Brass Pipe Hose Fitting Connect pressure resistance, not easy to trip.brass npt reducer air hose fittings working pressure from vacuum max to 300 psi. Temperature Range: -65 F to +250 F(Note: see tubing manufacturer?s recommendations for pressure and temperature mutations). ?WIDE APPLICATION?- Pipe Fittings can be used with piping connections, compressed air, hydraulics, gases, grease, refrigeration, instrumentation and hydraulic systems in low,medium pressure pipe line connections and inert gas lines etc.