Get your semi Ready for the Road Ahead™ with clean and dry pneumatic systems to optimize air brake performance, with the Wabco SYSTEM SAVER® 1800 Series Oil Coalescing Air Dryer Cartridge. To guard against corrosion, ice formation, and valve damage, this replacement filament works to remove dirt, dust, oil, and other contaminants from the air lines. Fashioned with durable materials to withstand demanding operating conditions such as high temperatures and rough vibrations. FleetPride is your First Click in Heavy Duty®.