This High Grade Filter Wool comes as a 1 meter x 1 Meter Sheet.
Perfect for Sumps, Canister Filters and anywhere that Mechanical filtration is needed.
A perfect accompaniment would be to place this wool on-top of Your Poly-filter to prolong the life of the ever so popular Poly-filter.
The Biological Filtration that would work best with this product would be MarinePure.