The car air dryer cartridge is used in the pneumatic system of the car. Compressor, tank, electronics and pneumatics are demanding on air quality and cleanliness. External factors do not provide the system with such. Dirty, too humid air causes damage to the pneumatic system of the car. An air purification cartridge is a special replaceable cartridge that dries the air. Moreover, it will remove moisture from the compressed air.

1. 4 - series
2. MIDLUM
3. P,G,R,T - series
4. 3 - series
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The construction of the air dryer cartridge

Its design is very simple. In appearance, this device resembles an oil filter. Consists of:

1. A metal case with a closed top. The body has peripheral holes and a threaded hole, as well as an inlet and outlet of the filter.
2. The inner case, which is commonly called a glass. It is filled with absorbent synthetic material.
3. There is a spring at the top of the cartridge.
4. Depending on the cartridge model, they have primary and secondary dirt filters available.

The BOSCH brand Air Dryer Cartridge, compressed-air system contains an absorbent material inside. A special substance that absorbs moisture. These small granules are made up of synthetic fibers. The gap between the two housings ensures the normal passage of air, which is cleaned from oil and moisture.