Our round pre-filter sponge (which is used in overflow boxes) is 6x2-3/4” with a 1” center hole.This open cell sponge will give you a better water flow, while consistently collecting the sludge from the aquarium.
Our filter pads are both 36x60” in size. The heavy weight pad has a 10 oz. density. This is twice as thick as most others out there on the market today. We now offer a thinner pad (7 oz. weight) at a slightly lower cost. These products are similar to any “cut your own pad” used for wet-dry filtration systems but are much more absorbent.
Also available are 7x7”and 9x9” six-pack pre-cut filter pads made from the 7 oz. felt material. These are predominantly used in wet-dry filter trays.
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