Rainbow Bio Blox

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Rainbow Bio Blox

Product Details: Poly-Flo Rainbow Bioblox

Product Name Color

Poly-Flo Rainbow Bioblox Mixed Colors

Poly-Flo Biological Filter Media

More than 500 sq. ft of surface area per one cubic foot box!

Less expensive alternative to other types of filter media.

Can be used in virtually any biological filter.

One box will fill 3 of the FB-2 bags.

One box will loosely fill the BG2234.