AccuAir Suspension VU-Series air solenoid valves are available in 4-corner and 2-corner units. They're compact design and ability to survive harsh under-vehicle environments, make them ideal for any application, providing the most reliable operation, along with the cleanest installation. The VU4 electronic solenoid valve units inflate and deflate up to (4) individual air springs and the VU2 electronic solenoid valve units will do the same for up to (2) individual air springs. Both have 1/4 in. NPT ports for use with any fittings that you choose. AccuAir valves feature robust stainless steel internal architectures to maximize flow rates, provide bubble-tight sealing, and guarantee operation up to 200 psi for millions of cycles. All of this technology is housed in a unique enclosure design which routes each of the solenoid wires to a single weatherproof connector, eliminating typically loose wires, while providing fast and accurate plug-and-play connection.