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

excellent!

Works perfectly.

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

Great price works great

This is the easiest to use, most complete, and easiest to use kit on Earth. It has guided me thru my new Aquarium and I am so satisfied! This fron a 50 year okd aquarium aficionado. Thank you!

Quick transaction and perfect for what I needed ! Thanks

Muy buena calidad y pronta entrega

Work great!

Great Product

Good seller