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

Good

very good.

Great product and good price

They fit in the fish tank

Love the filters

In this last shipment, the carbon had shaken out of the filters and was all over the inside of the shipping box. Usually thats not an issue. Kinda messy.

Excellent for Aquariums

The product is fine, does what its used for. My issue is the packaging. Instead of putting it in a box it was in a cheap paper bag! The box was crushed which crunched the filters and released some of the charcoal. VERY disappointed!!

They say filter should last several weeks, barely lasts several days

Works well