Maxcheck 20 Pcs Blue Aquarium Filter Media Compatible with Fluval 406/407 Foam Filters Replacement Parts Fish Aquatic Pet Products Sponge Polyfill for Aquarium Filter Pad, 11.02 x 2.99 x 1.5 Inch

Work great and a lot less costly then OEM Fluval ones

What I like the most about this blue filter foam is that the PPI is just in that magic Zone where it will take out the large debris as well as do a small amount of water polishing which really makes it worthwhile to have in your tank. I have cut it up and put it in my 10 gallon tank as a pre-filter and also used it to help power heads polish the water in my tank while keeping a decent amount of circulation. Since there is a lot of material which is shipped with this order, you can afford to make some mistakes and experiment a bit and always have plenty extra to swap out quickly if you need to clean your tank in a hurry.

No me agrado nada este producto, es una basura lo que recibí

Came like eveyone elses squashed in vacuum packaging. Looked like garbage initially but pieces needed time to expand and required help with stretching/fluffing. Usable but not as substantial as expected. Will treat these as more disposable than the ones they replace.

These filter pads are a great alternative to the brand name ones. I use this filter for a turtle tank so it they get really nasty and are changed much more often than one would do for fish. They fit perfectly and do a great job filtering the tank. Highly recommend these.