API Filstar Super Micro-Filter - 2 Pack
Dual density progressive micro filtration pad. Cotton pad with gradual thickness that removes the smallest particles before the water is returned to the aquarium.
Due to its dual density, its ability to remove dirt is two times greater than conventional cotton pads.
The Super Micro Filtration pads are very effective after routine aquarium maintenance.
Replace the Super Micro-Filter Pad every time the water is changed or at least once a month.