System Saver Twin air dryers are designed for trucks with high air use requirements. One cartridge is drying air while the other is regenerating. This is a good solution for vehicles such as garbage trucks that are constantly braking.
Ordering a Meritor WABCO System Saver Twin air dryer
We'll need a part number from your existing air dryer. You can find it on the metal ID tag, and it will look like 432 431 016 0. For new installations, you will need to determine the compressor's rating in CFM and whether you need a 12-volt or 24-volt heater/thermostat.