Best Seller | Fluval FX5 Filter Foam Block - 3-Pack Fluval FX5 Filter Foam Block - 3-Pack - Provides mechanical filteration of fine particles - Prevents premature clogging - Enhances biological filtration - Suitable for all media baskets of the FX 5 Filter - 3-pack - - - 4.8 x 3.5 x 1.7 inches; 6 Ounces more | | $34.18 FREE shipping go to store |