Find the lowest price for:       All ProductsFilter Media     0.0 (0)   Add a review Hagen Fluval Filter Foam Block 404 / 405   MSF Foam Blocks 404/405 2pk by Fluval. For Fluval Multi-Stage Filters Have a question? Ask the Experts! Compare Prices Product Spec Member Reviews Recommend to Friends Edit the spec Category Mechanical Something wrong in this page? Let us know! Related products: More Mechanical Filter Media Other Filter Media internal use: spec356