Pleatco Pool Filter Wash Tablet 

Pleatco Filter Wash is a simple to use cleaning tablet specially formulated to penetrate deeply into any reusable cartridge filter and remove the accumulated materials such as suntan lotion or oil, body oil, grease, dirt, soap scum, and other organics. This thorough cleaning allows cartridges to return to a high level of original performance without harming the filter. Fast acting Fizz tablet means no measuring and no messy chemicals. Just rinse your cartridge, add tablet to water in a bucket, soak entire cartridge (turning upside down to do both sides if needed) for 25 minutes and rinse off.  1 Tablet can clean up to 2 cartridges in one use.  Clean as needed or once a month for best cartridge performance.