6-Pack, Size B, Rite-Size Cartridge Refills

These fit perfectly and the price is great

excellent!

Ive used these for years and are a fair value when bought in bulk.

Is working so far

The product was exactly was what I wanted but it came crushed and charcoal from the filter media went all over the floor. The packaging was inappropriate for the merchandise.

Filters don’t last more that a few weeks but filters very easy to change out and fairly inexpensive.

Great

They fit in the fish tank

Just like the original one. Does what its required

could not use wrong size to small