Description: This quick coupler and plug set assures easy connection and disconnection of piping. It is easy to install and features high reliability and corrosion resistance. Works well with air operated equipment. Features: Heavy duty air hose connector fitting is sturdy, corrosion resistant and durable in use. The air hose quick coupling is mainly used for pneumatic tool, easy to achieve the connection or disconnection of piping without other tools. Widely applied to pneumatic tool, auto industry, air compressor, mechanical engineering and other areas. Standard 1/4 NPT male/female connection. Included 10pcs quick couplers and 20pcs quick plugs. Specifications: Condition: 100% Brand New Material: Iron Surface Treatment: Zinc Plating Color: Silver Type: 1/4 NPT Quantity: 30PCS in Total Coupler Body: 10pcs(5pcs Inner Thread + 5pcs Outer Thread) Plug Body: 20pcs(10pcs Inner Thread + 10pcs Outer Thread ) Weight: approx. 1321g Package Included: 10 x Quick Couplers 20 x Quick Plugs