The Meritor WABCO System Saver family of air dryers is an industry benchmark—setting standards for desiccant-type air dryers. These air dryers can meet virtually any vocational requirement. System Saver Series air dryers build on Meritor WABCO's tradition and standards of quality, reliability and durability. Their compact and lightweight design allows for easy installation, making them perfect for the limited space available in today's aerodynamic vehicles. Meritor WABCO System Saver air dryers pack the big benefits you expect into one tight compact package. Both System Saver 1200 and 1800 air dryer cartridges are available with an oil coalescing filter option.