Filter Pure is a liquid, heavy-duty alkaline detergent cleaner designed for alternate cleaning of the Microfilter, with its mate, Filter Cure. FP breaks down and removes organic contaminants such as oils and other bather waste. Both of these Microfilter cleaning products are designed to fit snugly in Beachcomber’s Filter Cleaning Canister. Keeping Microfilters clean improves filtration performance and enhances water clarity. Do not mix these Filter Cure / Pure together as mixing will render them both inert.