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Special HD CalClean® is an extra-strong liquid detergent specifically designed for cleaning electronic air filters. Electronic air filters can become coated with tobacco tars and other deposits that are very difficult to remove with ordinary detergents. It will rapidly clean dirt, grease, dust and tars from the plates on these filters and it will not corrode or tarnish aluminum or other metals when used at the recommended concentrations.
In addition, it can also be used to clean evaporator coils, air-cooled condensers and permanent air filters that are soiled and difficult to get clean with other detergents.