Find Reviews and Compare Prices 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? Just Ask! Member Reviews Compare Prices Product Spec Send to a friend Searched ReefresH2O BioMedia 9x9x4 Inch Block in 150 stores, 0 results found Sorry - We couldn't find any stores offering this product. Please check again. Image Description   Store   Price You can also search these stores   Find this product on Amazon   Amazon.com   2 Store Reviews   Search on Amazon   Find this product on eBay   eBay   5 Store Reviews   Search on eBay 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