This versatile air compressor valve assembly is made from durable copper, offering excellent resistance to wear. It includes a check valve, all designed to work together for optimal air flow management. ideal for various applications, it ensures your air compressor operates smoothly and efficiently. Features -Color:Golden -Material:Copper -Size:5.30X3.50X2.20cm/2.08X1.38X0.86in -Solid build: full copper material ensures high durability and consistent performance, making it ideal for heavy duty industrial applications -Enhanced safety: unloader valve design minimizes overpressure risks, providing protection for high- -Reverse flow prevention: integrated check valve stops gas backflow, maintaining system efficiency and preventing potential damage -Precision engineering: tailored for environments that demand exact pressure control, such as scientific research and precision manufacturing -Fast pressure release: outlet valve enables quick and effortless pressure discharge, ensuring smooth operation during critical moments Package list: 4 x air compressor valve