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

Muy buena calidad y pronta entrega

Use them in my marineland biowheel filter. Cheaper than pet store price.

Filter media is to fine, clogs up quickly. I am now cleaning it a couple times before changing.

Works well

We have always used this product and was very happy to get it from Amazon

Exactly what I needed for our fish filter.

Good

Its the wrong size! It says size B but its actually size C. I have a filter that uses size C so its not a big deal but it should be what the product says.

Just like the other reviewer stated, the carbon was all over the place. It was all loose inside the box and spilling/leaking out of the box. Price was great, but perhaps this was a defective one.

The box the filters should have been in was tore up. The soft part of the filters were tore and charcoal was everywhere.