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Innovative filter media design maximizes pond biological filtrationAchieve a healthier pond environment using less bio-filter mediaGreat for pond filtration systems with limited space for extra mediaOptimize biological filtration in your koi pond or water garden. Versatile, space-saving Bio-Balls efficiently process more harmful organic materials for a healthy pond environment. The secret is their unique, geometric design that dramatically increases surface area to cultivate more beneficial bacteria. One gallon of Bio-Balls has a surface area of approximately 21-1/2 square feet. Safely maintain larger biological loads in ponds with relatively smaller filter areas. Place in pond waterfall filters to improve biological filtration. Each Bio-Ball measures approximately 1 inch. Use one gallon per 45 to 60 gallons of water.Please click on "More Information" for Frequently Asked Questions regarding biological filter media.

Innovative filter media design maximizes pond biological filtrationAchieve a healthier pond environment using less bio-filter mediaGreat for pond filtration systems with limited space for extra mediaOptimize biological filtration in your koi pond or water garden. Versatile, space-saving Bio-Balls efficiently process more harmful organic materials for a healthy pond environment. The secret is their unique, geometric design that dramatically increases surface area to cultivate more beneficial bacteria. One gallon of Bio-Balls has a surface area of approximately 21-1/2 square feet. Safely maintain larger biological loads in ponds with relatively smaller filter areas. Place in pond waterfall filters to improve biological filtration. Each Bio-Ball measures approximately 1 inch. Use one gallon per 45 to 60 gallons of water.Please click on "More Information" for Frequently Asked Questions regarding biological filter media.

3-stage filtration in a single cartridgeBaffle floss bag prevents carbon from settlingClamshell frame locks securely to contain mediaDisposable, baffle floss/carbon bag provides mechanical and chemical filtration and prevents carbon from settling. Also includes one reusable aerobic sponge for superior biological filtration and one reusable clamshell frame for easy slide-in installation in Drs. Foster and Smith Bio System Power Filters and Whisper filters. Junior fits Bio System Power Filter Model 15, Whisper E, Jr, 10, and Whisper In-Tank Filters 10i. Regular fits Bio System Power Filter Model 25, 35, 55, 75, Whisper C, 1, 2, 3, 20, 30, 40, 60, and all Triad filters.Please click on "More Information" for installation instructions.

3-stage filtration in a single cartridgeBaffle floss bag prevents carbon from settlingClamshell frame locks securely to contain mediaDisposable, baffle floss/carbon bag provides mechanical and chemical filtration and prevents carbon from settling. Also includes one reusable aerobic sponge for superior biological filtration and one reusable clamshell frame for easy slide-in installation in Drs. Foster and Smith Bio System Power Filters and Whisper filters. Junior fits Bio System Power Filter Model 15, Whisper E, Jr, 10, and Whisper In-Tank Filters 10i. Regular fits Bio System Power Filter Model 25, 35, 55, 75, Whisper C, 1, 2, 3, 20, 30, 40, 60, and all Triad filters.Please click on "More Information" for installation instructions.

3-stage filtration in a single cartridgeBaffle floss bag prevents carbon from settlingClamshell frame locks securely to contain mediaDisposable, baffle floss/carbon bag provides mechanical and chemical filtration and prevents carbon from settling. Also includes one reusable aerobic sponge for superior biological filtration and one reusable clamshell frame for easy slide-in installation in Drs. Foster and Smith Bio System Power Filters and Whisper filters. Junior fits Bio System Power Filter Model 15, Whisper E, Jr, 10, and Whisper In-Tank Filters 10i. Regular fits Bio System Power Filter Model 25, 35, 55, 75, Whisper C, 1, 2, 3, 20, 30, 40, 60, and all Triad filters.Please click on "More Information" for installation instructions.

3-stage filtration in a single cartridge Baffle floss bag prevents carbon from settling Clamshell frame locks securely to contain media Disposable, baffle floss/carbon bag provides mechanical and chemical filtration and prevents carbon from settling. Also includes one reusable aerobic sponge for superior biological filtration and one clamshell frame for easy slide-in installation in Penguin filters. Fits Penguin 125 and 150, Regent Aquatech 10-20, Neptune 20, and Penguin 170, 200, 330, and 350.Please click on "More Information" for installation instructions.

3-stage filtration in a single cartridge Baffle floss bag prevents carbon from settling Clamshell frame locks securely to contain media Disposable, baffle floss/carbon bag provides mechanical and chemical filtration and prevents carbon from settling. Also includes one reusable aerobic sponge for superior biological filtration and one clamshell frame for easy slide-in installation in Penguin filters. Fits Penguin 125 and 150, Regent Aquatech 10-20, Neptune 20, and Penguin 170, 200, 330, and 350.Please click on "More Information" for installation instructions.

3-stage filtration in a single cartridge Baffle floss bag prevents carbon from settling Clamshell frame locks securely to contain media Disposable, baffle floss/carbon bag provides mechanical and chemical filtration and prevents carbon from settling. Also includes one reusable aerobic sponge for superior biological filtration and one clamshell frame for easy slide-in installation in Penguin filters. Fits Penguin 125 and 150, Regent Aquatech 10-20, Neptune 20, and Penguin 170, 200, 330, and 350.Please click on "More Information" for installation instructions.

3-stage filtration in a single cartridge Baffle floss bag prevents carbon from settling Clamshell frame locks securely to contain media Disposable, baffle floss/carbon bag provides mechanical and chemical filtration and prevents carbon from settling. Also includes one reusable aerobic sponge for superior biological filtration and one clamshell frame for easy slide-in installation in Penguin filters. Fits Penguin 125 and 150, Regent Aquatech 10-20, Neptune 20, and Penguin 170, 200, 330, and 350.Please click on "More Information" for installation instructions.

3-stage filtration in a single cartridge Baffle floss filter bag prevents carbon from settling Clamshell frame locks securely to contain filter media Disposable, baffle floss/carbon bag provides mechanical and chemical filtration and prevents carbon from settling. Also includes one reusable aerobic sponge for superior biological filtration and one reusable clamshell frame for easy slide-in installation in Emperor 280 and 400 filters.Please click on "More Information" for installation instructions.