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Ships within 48 hours · Estimated delivery Aug 23 - Aug 28
for 360 ° omni-directional sterilization
25" FPT outlet
Small grate (ASGR) is egg-crate shaped material
A plug is included to block the unused side (although both may be used)
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Helix Bio-Mechanical Waterfall Filters External Pumps for 360 ° omni-directional sterilizationThe 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,
