Finest-Filters activated carbon impregnated foam provides excellent chemical filtration in aquarium and pond filters alike. This foam is impregnated with carbon, which will absorb chemical impurities out of the water, giving it a 'polish'. Carbon really does improve water clarity! This sheet is large - meaning you can cut several pads to fit your filter - depending on model.

You are purchasing:

1 sheet of size 18” x 12” (inches)

Thickness of this sheet: 25mm - (1 inch)

Grade of this foam: 20ppi Fine Foam impregnated with activated carbon - Black

Our filter foam is totally aquatic safe, and is not treated with any chemicals, so it is guaranteed to not harm your fish. We have been using this in our tanks for many years with great results.

This is suitable for all makes and models of aquarium and pond filter - simply cut the filter wool to size with scissors, to make a huge saving on what the shops charge!

PLEASE NOTE: We now sell two different thickness DIY Activated Carbon foam filter sheets - 12mm and 25mm. This sheet is 25mm.