Features Excellent replacement: This air compressor check valve is an excellent replacement for old or broken check valves of air compressors, ensuring smooth and efficient operation. Three male thread connectors: The check valve features three male thread connectors for easy tube connecting and air regulation, providing convenient installation and usage. Durable material: Made of high-quality zinc alloy, this check valve is sturdy and reliable, ensuring long-term durability and performance. Golden color: The golden color adds a touch of elegance to your air compressor, making it visually appealing and stylish. Triple Threaded Ports: This check valve has three threaded ports 10mm 16mm 20mm, which can fit a variety of air compressors, providing versatility and compatibility for various applications. Specifications: Product Name: Air compressor Check Valve Material: Zinc Alloy Color: Golden 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