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Biological pond filters are designed to provide biological and mechanical filtration for koi ponds, watergardens and all fish ponds with the least possible flow resistance.
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ULTIMA II 1000 gallons 1-1/2" valve FishMate compact filter
Our Price: $459.00
Our Price: $54.99
Aqua Ultraviolet filter 1000 gallon Fish Mate filter
Aqua Ultraviolet ULTIMA II bead filter for koi ponds up to 1000 gallons. Filter buries into the ground easily. Minutes to backwash. Can handle heavy fish loads.

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Free shipping for UPS ground only.
For expedited delivery call toll free 1-877-530-1959.
Fish Mate Compact Bio Pond Filter provides a powerful mechanical and biological filtration system that includes Supra bio-media. Debris is first strained out by the filter brush, and then a profiled filter sponge traps most of the remaining particles. Finally, water passes through bio-media, where beneficial bacteria thrive, removing ammonia and nitrite.

Use Compact Bio Pond Filter with koi ponds, water gardens, fishponds and decorative fountains. For ponds up to 1000 gallons, maximum flow 500gph.

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Free shipping for UPS ground only.
For expedited delivery call toll free 877-530-1959.
Compact 8W UV filter PF-2 ClearChoice Biofilter
Our Price: $134.99
Our Price: $83.25
FishMate UV filter ClearChoice PF-2
FishMate UV+ Bio Pond Filter combines ultraviolet, mechanical filtration and biological purification for the best in pond filtration. The 8 watt UV destroys algae as pond water passes through the filter. Supra BioMedia (included) possesses over 100 times the biological surface of plastic media. Filter is designed for ponds up to 500 gallons and a maximum 300gph flow. Filter measures 14"(l) x 9"(w) x 7"(h).

Free shipping!

Free shipping for UPS ground only.
For expedited delivery call toll free 877-530-1959.
Tetra Pond ClearChoice Biofilter incorporates trickle-flow technology to mechanically, chemically and biologically filter out water contaminants. Filter
sits outside the pond for easy set-up and maintenance access.

ClearChoice Biofilter is for fishponds up to 1,000 gallons, or water gardens up
to 1,800 gallons. Maximum 750gph water flow. 3/4" and 1" inlet/outlet fittings.
Filter measures 15.25" D x 17.5" H.

Laguna Pressure Flo 700 11 watt UV ULTIMA II 2000 gallons 1-1/2" valve
Our Price: $330.73
Our Price: $639.00
Laguna Pond Filters Aqua Ultraviolet filter 2000 gallon
Laguna Pressure-Flo filter all-in-one pond filtration system. Biological, mechanical and UV keep pond water clear. Backwash cleaning system and easy view cleaning indicator lets you know when backwash is needed. Universal Click-Fit plumbing couplings for 3/4", 1" and 1-1/4" hose connections. Maximum water flow 330gph.
For technical specifications click on "more info."

Free shipping!

Free shipping for UPS ground only.
For expedited delivery call toll free 877-530-1959.
Aqua Ultraviolet ULTIMA II bead filter for koi ponds up to 2000 gallons. Filter buries into the ground easily. Minutes to backwash. Can handle heavy fish loads. 1-1/2" valve.

Free shipping!

Free shipping for UPS ground only.
For expedited delivery call toll free 1-877-530-1959.
ULTIMA II 2000 gallons 2" valve Pondmaster 190 Kit
Our Price: $779.00
Our Price: $72.64
Aqua ULTIMA II 2000 gallon Pondmaster 190 Kit
Aqua Ultraviolet ULTIMA II bead filter for koi ponds up to 2000 gallons. Filter buries into the ground easily. Minutes to backwash. Can handle heavy fish loads. 2" valve.

Free shipping!

Free shipping for UPS ground only.
For expedited delivery call toll free 1-877-530-1959.
The Pondmaster 190 pond kit is a great way to begin enjoying the excitement of water gardening.  By matching pump with filter this kit makes it easy for the novice pond keeper to create the perfect water feature.  Suitable for small ponds and water gardens up to 380 gallons in size.
PF-1 ClearChoice Biofilter PowerFlo 4500
Our Price: $71.85
Our Price: $163.99
ClearChoice PF-1 PowerFlo 1000
Tetra Pond ClearChoice Biofilter incorporates trickle-flow technology to mechanically, chemically and biologically filter out water contaminants. Filter
sits outside the pond for easy set-up and maintenance access.

ClearChoice Biofilter is for fishponds up to 500 gallons, or water gardens up
to 1,200 gallons. Maximum 500gph water flow. 3/4" and 1" inlet/outlet fittings.
Filter measures 15.25" D x 12.5" H.

PowerFlo 1000 is an external pond filter that features an efficient 3 tier filtering system to provide complete mechanical and biological filtration of pond water. Rated for ponds up to 1,000 gallons.
PF-3 ClearCoice Biofilter Tetra BP filter 1500 non-UV
Our Price: $95.15
Our Price: $228.55
Tetra Pond PF-3 Biofilter Tetra Bio-Active Pressure Filter 1500
Tetra Pond ClearChoice bio filter uses trickle-flow technology to mechanically, chemically and biologically filter contaminants out of pond water. Mechanical pre-filter sponges remove suspended debris, while the Venturi inlet aerates water and enhances bio-activity. Internal spray system disperses water through the Bio-Ring media ensuring sufficient oxygen for excellent bio-filtration conditions. For water gardens up to 2,400 gallons and fish ponds up to 1,500 gallons in size, with a maximum flow rate of 1,000gph. NEW for 2009!

Tetra Pond Bio-Active pressure filter provides both mechanical and biological filtration without the foam! Open-Profile Bio-Activators traps dirt and debris as water is pressurized into the filter. Back flushes easily! 1-1/2" inlet/outlet ports. Designed for ponds up to 1,500 gallons. Recommended flow rate is 3600gph. (Note: for effective back flushing a minimum 2500gph flow rate is required).

Free shipping!

Free shipping for UPS ground only.
For expedited delivery call toll free 877-530-1959.
Tetra BP filter 2500 non-UV Tetra BP filter 4000 non-UV
Our Price: $265.68
Our Price: $325.87
Tetra Bio-Active Pressure Filter 2500 Tetra Bio-Active Pressure Filter 4000
NEW for 2009!

Tetra Pond Bio-Active pressure filter provides both mechanical and biological filtration without the foam! Open-Profile Bio-Activators traps dirt and debris as water is pressurized into the filter. Back flushes easily! 1-1/2" inlet/outlet ports. Designed for ponds up to 2,500 gallons. Recommended flow rate is 4200gph. (Note: for effective back flushing a minimum 2500gph flow rate is required).

Free shipping!

Free shipping for UPS ground only.
For expedited delivery call toll free 877-530-1959.
NEW for 2009!

Tetra Pond Bio-Active pressure filter provides both mechanical and biological filtration without the foam! Open-Profile Bio-Activators traps dirt and debris as water is pressurized into the filter. Back flushes easily! 1-1/2" inlet/outlet ports. Designed for ponds up to 4,000 gallons. Recommended flow rate is 4200gph. (Note: for effective back flushing a minimum 2500gph flow rate is required).

Free shipping!

Free shipping for UPS ground only.
For expedited delivery call toll free 877-530-1959.
Tetra BP filter 1500 w/9 watt UV Tetra BP filter 2500 w/18 watt UV
Our Price: $365.32
Our Price: $391.46
Tetra Pond BP Filter 1500 w/9 watt UV Tetra Pond BP filter 2500 w/18 watt UV
NEW for 2009!

Tetra Pond Bio-Active pressure filter provides both mechanical and biological filtration without the foam! Open-Profile Bio-Activators traps dirt and debris as water is pressurized into the filter. Ultraviolet improves water clarity by destroying algae growth. Back flushes easily! 1-1/2" inlet/outlet ports. Designed for ponds up to 1,500 gallons. Recommended flow rate is 3600gph. (Note: for effective back flushing a minimum 2500gph flow rate is required).

Free shipping!

Free shipping for UPS ground only.
For expedited delivery call toll free 877-530-1959.
NEW for 2009!

Tetra Pond Bio-Active pressure filter provides both mechanical and biological filtration without the foam! Open-Profile Bio-Activators traps dirt and debris as water is pressurized into the filter. Ultraviolet improves water clarity by destroying algae growth. Back flushes easily! 1-1/2" inlet/outlet ports. Designed for ponds up to 2,500 gallons. Recommended flow rate is 4200gph. (Note: for effective back flushing a minimum 2500gph flow rate is required).

Free shipping!

Free shipping for UPS ground only.
For expedited delivery call toll free 877-530-1959.
Tetra BP filter 4000 w/18 watt UV Underwater mechanical/biological filter
Our Price: $515.58
Our Price: $45.38
Tetra Pond BP filter 4000 w/18 watt UV Underwater filter
NEW for 2009!

Tetra Pond Bio-Active pressure filter provides both mechanical and biological filtration without the foam! Open-Profile Bio-Activators traps dirt and debris as water is pressurized into the filter. Ultraviolet improves water clarity by destroying algae growth. Back flushes easily! 1-1/2" inlet/outlet ports. Designed for ponds up to 4,000 gallons. Recommended flow rate is 4200gph. (Note: for effective back flushing a minimum 2500gph flow rate is required).

Free shipping!

Free shipping for UPS ground only.
For expedited delivery call toll free 877-530-1959.
The perfect filter for whiskey barrel water gardens, or ponds up to 500 gallons. Provides complete mechanical, biological and chemical filtration. Use with Laguna PowerJet fountain pump (sold separately).
Pondmaster 1700 Kit Pondmaster 1500 Kit
Our Price: $137.29
Our Price: $129.73
Pondmaster 1700 Kit Pondmaster 1500 Kit
Pondmaster pond kits are a great way to begin enjoying the excitement of water gardening.  These kits make it easy by matching pump with filter and are created for the novice pond keeper. Suitable for medium to large ponds up to 1,250 gallons. Pondmaster pond kits are a great way to begin enjoying the excitement of water gardening.  These kits make it easy by matching pump with filter and are created for the novice pond keeper. Suitable for  medium ponds up to 1,000 gallons.