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This heavy duty vault is designed to withstand the pressure of being buried beneath gravel or stone
Durable all-weather construction
An optional secondary exhaust hose can be added onto the end of the discharge hose to gain an additional 32 ft
If used regularly it can help eliminate the need for annual pond cleanouts
The distinct combination of natural ingredients make this an effective 3-in-1 product
Savio Springflo - Pond Filter Media | Bio-Ribbon Water Test Kits This heavy duty vault isSpringflo is a biofilter media that provides great surface area for beneficial bacterial colonization when used in biological filters. Each box contains 190 sq. ft. of surface area yet weighs a mere 3 lbs. 2 oz. This pond filter media is made from a composite of calcium carbonate and polypropylene which enables beneficial bacteria to grow on the media quickly thereby eventually controlling algae in the pond. A great choice for ponds with heavy fish