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

I wish they are were a little less expensive.

These fit our childs aquarium at a reasonable price considering how often they have to be replaced.

Does the job keep replacing filter every month keeps water clear.

Fits well and keeps the water clean

Quality and price its fantastic ,

Got these delivered when I didn’t want to get them from the store. Decent value. Fit and work fine. Same as what was at the Petstore.

Sheerness, thickness, great quality and value and money priced equally!

Fine product. Wish amazon didnt run a forklift over it before they sent it to me.

Filter works as it is supposed to. Satisfied.

my fish tank takes the regular size, and that’s what i ordered but when i opened the package just now to replace my old filter cartridges it was the small ones.