Comprehensive Set: This 45-piece air hose fittings kit includes 14 male air plugs, 14 female air plugs, 4 hex couplers, 4 hex joints, 4 female air couplers, and 4 male air couplers, plus 1 PTFE tape, covering all your essential needs for air tool connections. Materials: Constructed with brass for hex couplers and connectors, and iron with a copper plating for other components, this kit offers enhanced resistance and durability under high pressure and wear conditions, ensuring long-lasting performance. Advanced Design: Featuring industrial-grade M/D type specifications with a four large-sized locking ball structure, these fittings provide a stable, leak-proof connection and support up to 300 PSI, facilitating easy installation and quick disconnection. Versatile Use: Ideal for various applications, these air compressor fittings connect seamlessly with air hoses, blow , nail machines, and more. They are compatible with most pneumatic tools and air pipes, suitable for both home and industrial environments. Reliable Service: Encounter an issue? No worries. Our dedicated customer service team is to assist with any problems, ensuring a hassle-free experience with our air hose fittings kit. Features: The kit contains 14 male/female air plugs, 4 male/female air couplings, 4 hexagonal couplings/fittings, and 1 roll of PTFE tape. Constructed from materials, the hexagonal couplers and connectors are made of solid brass to prevent rust and enhance strength, while other connectors feature copper-plated iron cores capable of withstanding pressures up to 300psi and resisting . Designed for ease of use and safety, the air connectors include four large locking balls to secure the plug and prevent accidental disconnections. Quick connect design allows for tool-free installation, and the included PTFE tape ensures a leak-proof seal. Perfect for use with air nails, , and pressure washers. Specifications: Connection Standard: 1/4" NPT Maximum Pressure: 300psi Material: Brass, Copper-plated Iron Kit Contents: 14 air plugs, 4 air couplings, 4 hexagonal fittings, 1 roll of PTFE tape Color: As Shown Package Contents: 14 air plugs, 4 air couplings, 4 hexagonal fittings, 1 roll of PTFE tape Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.