BioGuard Kleen-It Filter Cleaner 1 qt:

Get the most out of your pool's filter with BioGuard Kleen-It Filter Cleaner. Designed and tested by industry experts, this 1-quart bottle is packed with powerful, scientifically formulated ingredients that will thoroughly clean your filter and improve its performance. Say goodbye to clogged and dirty filters and hello to crystal clear, refreshing pool water.

• Removes metal, dirt and scale from filter
• Cleans sand, DE and cartridge filters
• Spray or soak application
• BioGuard Kleen-It Filter Cleaner