3PCS 1/2" 12mm Non-Return One Way Check Valve,Aluminium Alloy Fuel Hose Check Valve Control Accessories for Petrol Diesel Fuel Oil Water H-032-12mm 1/2" (12mm)
Material:The non return check valve body is made of high quality aluminum alloy can use longer than plastic one,Surface anodized for great appearance and anti-corrosion, superior thread strength