25.5" dia. x 16.5" h includes 2" lip at top of filter, 8" w overflow, 3/4" FPT inlet for pump sizes 300-1,200 GPH, for 1,500-2,000 gallon ponds
Our Biological Filters (Bio-Filters) are the essence of simplicity. As pond water enters the bottom of the filter housing, Section C, the water slows considerably allowing suspended solids to settle out into the base of the filter. The water then flows upward through the filter media (sold seperately 4pvc1, qty. 2), Section B. Bacteria living on the media convert toxic ammonia and nitrites to harmless nitrates. Plants in the top of the filter, Section A, are optional but highly recommended because they will consume nitrates and other nutrients that cause pea-soup algae. The water is aerated as it returns to the pond from the top of the filter. Installation is simple and requires virtually no plumbing. Filter includes housing, fitting and support grate.