LTWHOME Pre-Filter Sponge Roll Fit for Tetra 19016 Pond FK3 Filtration Fountain Kit (Pack of 6)Packing include: 6pcs filter sponge. Custom designed and manufactured for Tetra Pond FK3 Filtration Fountain Kit . Provides efficient water flow with less clogging for long lasting filtration. Enhances biological filtration.

please do not use this product

Approx size:130mm x 60mm x 8mm

Packing include: 4 pcs fine and 1 pc coarse filter pad

75 inches(Coarse)

Performs mechanical filtration

Custom designed and manufactured for All Pond Solutions IF Internal Aquarium Filter

3 x Small fine filter foam

Traps any large particles and debris in the water before they reach the pump

Foam size:135mm x 70mm x 16mm

Size: 11-3/4 x 11-3/4 inch

Custom designed and manufactured for Aquaball 2208 2210 2212 / 60 130 180

They are just Activated Carbon impregnated foam