Bio-Dex M2000 Filter CleanerThe Bio Dex M2000 Filter Cleaner is a powerful liquid formula that will effectively remove contaminants from the filter such as scale, grease, rust, oil and soil. This product can be applied directly to the filter, or it can be added in a solution to have the filter soaked in. Proper use of this cleaner will help improve the efficiency of catching contaminants and filtration rate of your cartridge filter. Removes scale, grease, rust, oil and soil