The ESCO Automatic Multiple Tire Inflator with 4-way inflation system is a wall mountable tire inflator cased in a heavy-duty aluminum die-cast housing. The included 4-way inflation system gives you the option to inflate 4 tires at once. Simply set the required pressure, connect the airline and then let this automatic inflator do the rest. Professional grade design is IP56 rated for both indoor and outdoor use in any garage, industrial or shop environment. With an accuracy rating of +/- 0.3 psi and a 1-year warranty, this professional inflation unit is perfect for any application.