- Protects the pump from leaves, algae and other debris
- Includes polyester filter media inside nylon mesh bag
- The small protector fits most size pumps up to 6" diameter
- The large protector fits most size pumps up to 8" diameter
- Maximum recommended flow up to 2550gph on the large protector & 1250gph on the small protector
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- Increases water clarity
- Eliminates odors caused by hydrogen sulfide, dead plant material, and fish waste
- Reduces ammonia and nitrogen levels
- Dissolves away organic sludge
- Improves dissolved oxygen levels
- Effective in a wide range of pH conditions and water temperatures
- 1lb block treats up to 1 acre of water (325,851 gallons)