Tetra Carbon Filters 2 Count, For aquariums, Medium, Fits Tetra Whisper EX Filters, Tetra Whisper EX20 Carbon Filters, Medium, 2-Count

the style of the filter has changed & doesnt fit my current frame as well.

I have had no problems with this product!

Great

Grasias eselente trabajo seguiré comprando

Use of aquarium filter keep tank extra clear. Love this product

great deal

Works great. Keeps my tank clean for many weeks.

very good filters

Same stuff as in pet stores but at a better price. You really can not go wrong. Its better to buy box of 4 than bag of 2.

They do the job, but I need to augment the filter pump with additional activated charcoal and ammonia reducing pellets.