Features Thread specification is G1/2xG3/4xM10, with uniform force and no slippage during installation. High hardness, not easy to deform or break, high safety factor and long service life. Uses brass material, sturdy and durable, explosion‑proof and compression‑resistant, and reusable. 3 male threaded joints are used for pipe connection, air pressure tank and compressor piston pump respectively. Wide range of uses, tight connection and no leakage, suitable for air compressors. Specification: Item Type: Check Valve Material: Brass Model Specifications: 1/2x3/4-16 Teeth x 10 Scope of Application: Air Compressor Thread Size: G1/2xG3/4xM10 Purpose: Used in hydraulic system to prevent reverse flow of oil, or used in pneumatic system to prevent reverse flow of compressed air Package List: 1 x Check Valve Package List 1 x Check Valve