GLB® Filter Cleanse

A combination of acids and detergents in this multi-purpose granular formulation cleans and unclogs grease, oils and scale from all types of swimming pool filters. Its unique chemistry will gradually change from red to yellow as it cleans, so you know it’s working.

– Use routinely once every month or two during the season to maintain efficient operation.

– Must be pre-dissolved prior to using this product. Follow the easy instructions on the package.

– Compatible with chlorine, bromine, salt water chlorine, ozone and biguanide sanitizing systems.

Available Sizes: 2 lb.