BMW, Mercedes-Benz, Audi, Porsche Cayenne, Land Rover vehicles fitted with air suspension struts. Adaptors included in kit: 1/8” NPT, M8 x 1.0mm, M9 x 1.0mm, M10 x 1.0mm. Works with workshop air: pressure range = 0 - 160psi (0 - 11Bar). Can be used on-vehicle dependent on access to screw in ports. NOTE: Prior to use always set adjustable regulator to zero.