304 Stainless Steel Spring One Way Check Valve 4/6/8/10/12/14MM Non Return Check Valve Boat Engine

Label:Yes Color: Black Type: Non Return One Way Fuel Package Includes: 2pcs Non Return One Way Fuel Material: Aluminum Zinc Zinc Zinc Zinc Alloy Size: 4mm (1/8"),6mm(1/4''),8mm(5/16''),10mm(3/8''),12mm(1/2''),14mm(9/16'')

Features and Benefits: The one-way valve, made with high-quality materials, and also with advanced technology and equipment. Hand Pump is screw onto the suction valve of oil transfer/feed pump, when the engine is at rest, from diesel fuel tank pump into the oil transfer pump. Prevents fuel from returning back to the tank and keeps it in the line.