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

Awesome Find

Works well, good value

They work great!

It’s a great product, I’ll keep buying for my tank but Last two times I’ve gotten it from Amazon the box comes crushed and one of the filters are broken I would have sent it back I needed to change my water in my tank.

Great value

Good seller

They work fine! Best to get when on for a good price!

Buy these through Amazon because of value. Only issue is when receiving a lot of charcoal dust in package.

Good filters and a good price, works very well in. my fish tank

Great price works great