Find the lowest price for:       All ProductsFilter Media     0.0 (0)   Add a review ReefresH2O BioMedia 9x9x4 Inch Block   ReefresH2O BioMedia Block 9" x 9" x 4" by ReefresH2O. ReefresH2O BioMedia: Promotes more efficient biological filtration by combining an extremely high surface area with large and open pores Have a question? Ask the Experts! Set Price Alert Compare Prices Product Spec Member Reviews Recommend to Friends Searched ReefresH2O BioMedia 9x9x4 Inch Block in 150 stores, 2 results found Image Description   Store   Price ReefresH2O BioMedia 9x9x4 Inch Block If this item doesn't belong here, click Remove and help us keep our results accurate.   MarineDepot.com   5 Store Reviews   $42.29 Go to Store NanoDynamics Bio-Block - (9" x 9" x 4") If this item doesn't belong here, click Remove and help us keep our results accurate.   Big Al's Online   0 Store Reviews   $54.99 Go to Store Are we missing a store? Let us know! Something wrong in this page? Let us know! Related products: More Mechanical Filter Media Other Filter Media internal use: spec356