Filter cleaner returns filter to optimum efficiency. Removes scale, rust, and oil which act to reduce filter efficiency. Minimizes cloudy water due to clogged filter, removes grease, body oils, and suntan lotion which collect in the filter. Removes organic deposits that cause odors, and has a clean fragrance. Reduces maintenance costs by promoting better filtration, lengthening filter cycles, and prolonging life of filter. Compatible with any type of pool, spa, or hot tub filter.