Features: This 3/4" iron air hose fitting set delivers leak proof connection up to 150 , featuring style couplings for tool free installation in pressure pneumatic systems. Crafted from strong metal with corrosion resistant construction, the kit includes safety locks, rubber washers, and tape for secure, maintenance free performances in extreme conditions. Ideal for mechanics, industrial technicians, and DIY enthusiasts working with pneumatic tool, compressors, or automotive air systems requiring reliable hose connection. Perfect for workshop environments, factory assembly lines, or strong machinery where quick connection fittings must with stand vibration and continuous pressure operation. The complete air hose connector solution combines threading compatibility with reinforced metal engineering to prevent energy loss and ensure long term leak resistance. Specifications: Material: Metal interfaces: 1.56x2.16in, 3/4 diameter safety lock: 1.8in, washer diameter: about 1.13in Package Includes: 2x3/4inch Female Connectors, 4xSafety Locks, 2xRubber Washers 1xPTFE Threaded Seal Tape note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.