Big Red high flow 3/8 inch solenoid valve blocks quickly raise and lower heavy air ride applications such as trucks. They feature the same bubbletight design, the same weatherpak wiring connectors, and have the same laser-etched port markings as RideTech's standard 1/4 inch RidePRO valve, but flows much more air. Big Red air ride valve blocks feature eight solenoids total to control each wheel independently, both up and down.