The Donaldson Reservoir Air Dryer eliminates the need to continually replace conventional desiccant breathers, enhancing reservoir breathing systems by continuously purging and dehydrating reservoir head space.

The Thermally Reactive Advanced Protection (T.R.A.P.™) Breather assembly protects the fluids in your storage tank from airborne particulate moisture contamination and ambient moisture. It combines a high capacity 3-micron air filter with a deliquescent breather that dries itself when air is expelled from the tank. This self-regenerating capability of T.R.A.P.™ enables extended life and functionality. Keep your fluids clean and dry with a Donaldson T.R.A.P.™ Breather.