LTWHOME Compatible Filter Foams Replacement for Ciano SM / CF20 / CF40 Aquarium Filter (Pack of 12) Acts as biological housing for

Acts as biological housing for aerobic cultures will improve water quality

Packing include: 12pcs fine foam filter

White Coarse Sponge x 2

This is not a Penn Plax product and is not covered under any Penn Plax manufacturer's warranty

If your filter is Approximate size of these circle shaped filters: 6" diameter

LTWHOME Compatible Filter Foams Replacement for Ciano SM / CF20 / CF40 Aquarium Filter (Pack of 12) Acts as biological housing forPack include: 12pcs. Custom designed and manufactured for Ciano Aquarium Filters SMALL CF20 CF40. Trap large particles and debris keeping your aquarium clean and clear. Provide efficient water flow with less clogging for long lasting filtration. Change these sponge foams regularly to keep optimal filter performance.