Features ​​【Product Role】Excellent replacement for the old or broken check valve of your air compressor. 【Main Usage】The three male thread connectors are respectively for tube connecting, air. 【Easy To Use】Convenient to install with the thread connecting ends. 【Product Specification】Material: Brass filled;Color: Golden. 【Total Size】Total Size: 42 x 39mm. Features: 【Product Role】Excellent replacement for the old or broken check valve of your air compressor. 【Main Usage】The three male thread connectors are respectively for tube connecting, air. 【Easy To Use】Convenient to install with the thread connecting ends. 【Product Specification】Material: Brass filled;Color: Golden. Specifications: Product Name: Air compressor Check Valve Thread Diameter: 9.5-10mm 16-16.5mm  20-20.5mm Total Size: 42 x 39mm Male Thread Size: 1/2" 3/8" Hex Head Size: 18mm Note: Please allow a little size error due to manual measurement. Package Included: 1 x Air Compressor Check Valve Package List