There is a desiccant in the Thermoking Receiver Drier 66-5750, which can absorb moisture from the refrigerant, and a filter to collect any unnecessary impurities in the air conditioning system.
Thermo king 4074 Filter Drier provided by Kingclima are of high quality, factory direct sales, and affordable. It protects the normal operation of the bus air conditioning system.
With reasonable prices and guaranteed quality, Thermo King Receiver Drier TX4054 is a very reliable and choice product for bus air conditioning.