Buying Car Air conditioning Receiver Driers

Basically: ONLY BUY NEW AND SEALED CAR RECEIVER DRIERS
Used car receiver driers keep coming up for sale in listings, These are no good, totally useless in fact. As soon as they are removed from the car they start absorbing moisture in the form of water vapor from the atmosphere. This floods the desiccants inside the unit quickly overwhelming the units ability to dry the refrigerant, an iriversable effect. Receivers are a filter just like any other and you would not fit a used oil or air

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