Sealed for moisture and dust resistanceHard-anodized cylinder bore for reduced frictionTeflon-impregnated carbon fiber piston seal for maximum trouble-free lifeAnodized mounting bracket dissipates motor heat and allows compressor to be repositioned 180 degrees on vehicle mounted modelsQuality components for quiet operation and extra long lifeConstructed entirely of lightweight, high strength engineering grade materialsOver-pressure safety valve equippedMotor is internally thermal protected against extreme temperature damageHeavy duty maxi-fuse equipped for professional in-line circuit protectionOn-board model available in either a 12V or 24V configuration