JBJ 12 Gallon Nano Cube Aquarium Replacement Sponge - 9 Pack
9 pack of replacement filter foam sponge for the Nano Cube 12 Gallon filter system. This filter sponge fits the MT-40 and 402 12 gallon cubes. When purchased from a retail store, you typically only receive one sponge per box. With the purchase of this item, you will receive a quantity of 9 sponges! These are made to the exact same specs as the ones you would find from a local retailer in a colorful box, but for much less. We guarantee this product is exactly as described.