Prepare your semi to be Ready for the Road Ahead™, with the Mastercool Fully-Automatic R134A Recovery / Recycle / Recharge Machine that optimizes the refrigerant level in an AC system. Due to its ability to detect existing refrigerant levels, this specialized machine is able to remove contaminated refrigerant, while supplementing new volumes as needed. Constructed with an 8" touch screen and command center for advanced diagnostics and reports. FleetPride is your First Click in Heavy Duty®.