Tetra Whisper Bio-Bag Large Filter Cartridges for Aquariums, 3 Count, Ready to Use, Fits Tetra Whisper Fish Tank Filters 10-30 Gal, 20-40 Gal, PF-20, 30, 40, 60, IQ 20, 30, 45, 60

Why did you pick this product vs others?:Picked this because it has the most value and quality for the money. And have used before so know it does what it’s supposed to.

I buy this product frequently because it works perfectly with my Tetra Power Whisper Filter system. The filters are easy to use and help keep my 40-gallon aquarium clean and clear.✅ Great fit for Tetra Power Whisper Filters.✅ Effective filtration for maintaining water quality.✅ Reliable and easy to replace.Highly recommended for anyone using a Tetra filtration system!

Works as expected to keep the aquarium clean.

A must-have if you want to keep your tank water clean and pristine. I only use this brand, and for the price, you can't go wrong with it.

Does a good job in my tank Easy to replace

Overpriced but a good sturdy filter. It can be used for two or three weeks, but it must be cleaned every couple of days.

Great bio filter cartridges. They filter out the debris and keep the tank clean

Love to buy this bundle! Cheaper than pet store and arrives fast!