The Helix Bio-Mechanical Waterfall Filter is a great filter that uses lava rock and a large biological chamber for biological filtration, nitrate reduction and water polishing. The important distinction of this filter is the air-assisted cleaning feature that makes it possible to flush out the filter through high and low bottom drains. The high bottom drain removes surface scum, while the low bottom drain removes heavy solids. For use with liner, polyurea and concrete ponds. Compare this conventional filter to the exciting new Helix Bio-Mechanical Reactor!
Features of the Bio-Mechanical Waterfall Filters:
Heavy-duty rotational molded HDPE construction is easy to hide in your existing landscape
Stainless steel hardware and high quality plumbing parts extend the filter life
Clean your filter using pond water — without disassembling the filter or getting dirty!
Includes air manifold for air-assisted cleaning
Includes 2" Bulkhead (Not pre-drilled, so that you can chose right or left side)
Does not require a lid, so can be covered by a large stone or faux rock