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Product Catalog > Filters and Skimmers > Gravity Filters 

Gravity Filters

These filters sit above the water. The pump which can be in or out of the water forces water into the top of the gravity filter and the water is filtered through lava rocks or Bio-balls and then through a filter mat. Gravity then forces the water back into the pond either directly or through a waterfalls.
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BioStep and BioStep Waterfall by Matala

Matala Expandable gravity filter maximizes Matala filter media performance. The rugged Biosteps 10 contains an amazing 200 sq. ft. of...
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Biostep & Biostep Waterfall by Matala

Waterfall box for Biostep10 Add to any Biostep Filter to convert unit to waterfall versionEasy attachment11" Spillway ...
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Ultra-Violet Clarifier for Biosteps 10 Gravity Discharge Filter by Matala

Matala UV-C Clarifiers are designed for Koi ponds and water gardens to help suppress blooms of suspended green algae,...
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Koi Clear V-105 Vortex Filter by Matala

One single standard unit suitable for water gardens up to 20 Ton / 5,300 Gallons!    Versatile and modular application,...
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Tornado II Protein Skimmer by AquaForte

New improved version of the popular Tornado protein skimmer. No more pressure loss on the inlet due to the...
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Yumota-Vortex FRP Filter Tank by Litek Composites

Vortex settlement for mechanical separation of solids   Max. Flow Rate: 3940 GPH   Dimensions: 32 x 29 x 37   Inlet Size:...
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Now Only: $399.99   Qty:  
Fish Mate UV + Biological Pond Gravity Filters

Attractively priced, flow through UV pond filters designed for optimum water quality. High performance combination filters features Fish Mate SUPRA...
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Fish Mate Biological Pond Gravity Filter (No UV)

The Fish Mate Biological Pond Gravity Filter is a great filter, with no UV clarifier. The Filter brush replaces UV...
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Now Only: $64.52   Qty:  
Roto Concept Gravity Shower by Roto Innovations

The Roto Concept Gravity Shower™ is of a truly unique design, and by using the latest British manufacturing techniques to...
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UltraSieve III by AquaForte

The most compact, gravity fed, sieve filter with the highest pump capacity! For years this has been the leading...
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UltraSieve Midi by AquaForte

The smaller version of the successful UltraSieve III is here!The perfect solution for large pump capacities.The most ideal pre-filter! Create...
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TetraPond ClearChoice Biofilters - Replacement Media Pad Set - DISCONTINUED (Still carry the Replacement Filters)

These Filters were DISCONTINUED for 2010 but we still carry the Replacement Filters   Trickle filtration and BioRing media. ...
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BioTec 10 - Discontinued

General Product Information Cloudy, dirty water and strong algae growth are common problems in ponds. These...
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Now Only: $299.99   Qty:  
BioTec 10.1 - Discontinued

During the past few years OASE has with the Biotec 10 marketed the most successful filter concept...
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Now Only: $459.00   Qty:  
OASE Biotec 18 / Biotec 36 Screenmatic High-Performance Pond Filters - Discontinued - Call 805-241-0141 for Availability

 The Biotec Screenmatic sets the standard for pond filters. Simple operation, fast, clean maintenance, and outstanding filtration capabilities make...
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