Top Fin EF-S Element Filter Cartridge Value Pack 12 Month Supply 2.1 in X 3.7 in

Well made and worth the money

We have 3 fish in three tanks. For each tank, we go through these filters about one every six weeks. They really keep the water clean. Be sure to thoroughly rinse the filter BEFORE putting it in the tank as there is carbon dust that you need to wash off. They work as advertised.

Bought a 12 pack for the year, but the filter system to the fish tank I have is not as powerful as most, so Ill need to replace them 2X a month instead of once a month. Holding up ok for that time.

Works well

Ok - everyone needs these if you have that kind of filter so buying them in this bigger pack has saved me almost $20 last month buying them individually at the pet store.

These filters work good. Havent had to change as the directions state may be because only have 1 beta fish in a 3.5 gallon fish tank. These are more expensive though through here.

GREAT even though its just a fish filter

Filter works as it is supposed to. Satisfied.

Was the exact filter size needed for our tank.

Good value for the money.