Check the listing for details. Street Rod GM Disc Brake Blue 2 lb Residual Pressure Valve Check Valve 2pcs. Condition: New. Listed at 24.68 USD. DESCRIPTION --This valve can be used with any disc brake application as long as the master cylinder is located under the floor. --2-pound residual pressure valve in blue. --Input Threads: 3/8"-24 --Output Threads: 3/16" compression fitting --When the master cylinder is under the floor, it is usually lower than the calipers. --Gravity and vibration can cause brake fluid to leak back to the master cylinder away from the calipers, causing a loss of brake pressure. --This valve acts as a one-way check that prevents this type of bleeding. --Without it, your brakes could drag or give out completely. --Package: Including all items in the pictures. Note: Professional Installation Is Highly Recommended (No Instruction Included).Store categoryBrakes & Brake PartsMaster CylinderValve CoverAir CleanerSteering ColumnSteering Wheel & Horn ButtonControl ArmsRadiatorCooling SystemsWater PumpFuel CellPulleysAir Intake & Fuel DeliveryBracketSteering Shaft & U JointHood ScoopWater NeckIgnition SystemsStreet Rod GM Disc Brake Blue 2 lb Residual Pressure Valve Check Valve 2pcsDESCRIPTION--This valve can be used with any disc brake application as long as the master cylinder is located under the floor.--2-pound residual pressure valve in blue.--Input Threads: 3/8"-24--Output Threads: 3/16" compression fitting--When the master cylinder is under the floor, it is usually lower than the calipers. --Gravity and vibration can cause brake fluid to leak back to the master cylinder away from the calipers, causing a loss of brake pressure. --This valve acts as a one-way check that prevents this type of bleeding. --Without it, your brakes could drag or give out completely. --Package: Including all items in the pictures.Note: Professional Installation Is Highly Recommended (No Instruction Included).Payment & CheckoutShippingReturn PolicyWho We AreContact UsPayment & CheckoutShippingReturn PolicyWho We AreContact Us