Helix Life Support Floating Biological Filter Media

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This floating biological media from Helix Life Support is used in the Helix Moving Bed Waterfall Filter and the Helix Bio Mechanical Reactor. This floating media contains a surface area of about 153 square feet of surface area per cubic foot of media. . NOTE: Helix media has changed. Currently it is larger than the original media making it less likely to slip through and out into the pond. 5/8" diameter Show more