Reliably controls air pressure to three factory pre- set settings: 190, 225 or 245 psi (13, 15.5, or 16.9 bar). Servo control valve adjustment for precise pressure settings One click of the switch to obtain preset pressures for different types of animals Continuous and smooth flow of regulated air pressure. Reliable and accurate Durable construction ensures long service life. Economical and simple to operate. Lightweight, easy to install and use