Please Note : Communication is the best way to solve problems. If you have any problems after purchase, please contact us in time before opening the return . We will give you a satisfying solution. Description: 100% Brand New and High Quality 3 Year Warranty Will fit Following Models： Meritor S4721950330 & Wabco 4721950330 Crack Pressure: 4.0 PSI Supply Ports: 3/4" NPT (2) Delivery Ports: 3/8" NPT (4) Control Port: 3/8" NPT (1) Package Included: 1 x ABS Relay Valve(As Pics Shown) .
