Specification: Size: 3/8"-10mm Material: Aluminum Alloy Working pressure: 2.9-87 psi (0.2-6bar) Operating temperature: -30 ℃ - 130 ℃ Package Included: 1pcs One Way Fuel Check Valve Feature: (1)The non return check valve body is made of high quality aluminum alloy can use longer than plastic one. (2)Stable characteristics, high reliability. The push lock design of the connector stop the hose from sliding off and easy to connect. (3)Surface anodized for great appearance and anti-corrosion, superior thread strength. .