

🧼 Elevate your aquarium’s clarity with filtration that works as hard as you do!
Fluval FX4/FX5/FX6 Bio-Foam Replacement Filters deliver superior dual mechanical and biological filtration with a dense, porous structure designed to trap fine particles and foster beneficial bacteria growth. Engineered for perfect compatibility with Fluval high-performance canister filters, these reusable foam inserts ensure easy maintenance and sustained water clarity. Each pack includes two durable bio-foam filters, making it an essential upgrade for freshwater and saltwater aquarists committed to a pristine aquatic environment.

| ASIN | B00D6DRSK8 |
| ASIN | B00D6DRSK8 |
| Allergen Information | Nut Free |
| Best Sellers Rank | #8,119 in Pet Supplies ( See Top 100 in Pet Supplies ) #52 in Aquarium Filter Accessories |
| Brand Name | Fluval |
| Customer Reviews | 4.8 4.8 out of 5 stars (1,213) |
| Date First Available | June 4, 2013 |
| Department | Filter Media |
| Global Trade Identification Number | 00015561102391 |
| Included Components | All Items listed in Description |
| Is Discontinued By Manufacturer | No |
| Item Form | Stick |
| Item Type Name | HAGEN FLUVAL FX5/6 BIO-FOAM |
| Item Weight | 0.18 Pounds |
| Item model number | A239 |
| Manufacturer | Rolf C. Hagen (USA) Corp. |
| Manufacturer | Rolf C. Hagen (USA) Corp. |
| Manufacturer Part Number | A239 |
| Model Number | A239 |
| Product Dimensions | 2.5 x 7.7 x 9.1 inches; 2.88 ounces |
| Target Species | Fish |
| UPC | 015561102391 |
| Unit Count | 2 Count |
| Warranty Description | Manufacturer Warranty |
K**T
Fits Perfectly and Works Well
These bio-foam inserts fit exactly as expected and have been working without any issues. The foam is well made, holds its shape, and is easy to rinse and reuse. They’ve been a reliable replacement option and perform just as they should. No mess, no fuss, and no complaints. Simple, effective, and dependable.
K**N
Reliable and effective
I will always use fluval products in my aquariums and especially in all my filters. I recommend not putting off brand products in your filters. Very good value for the money!
C**E
Fast shipping
Love getting these from Amazon. They are a good price, comes fast, and are exactly what I need for my filter. They are easy to clean and swap out. They are perfect for my 125 gallon turtle tank.
7**R
Same pads for a year still. Durable.
Aside from the white coarse pads surrounding the trays, I run two of these black sponges wavy side up in all three trays and that's all. I detail my fx6 every six months and it handles the bulk of filtration on my 125. I also run a HOB for supplemental water polishing
W**R
Works great
It works great for my fluval FX2 filter. I have no issues. It came with my unit when I bought it new. Just needed to be replaced.
N**E
It is good and works perfectly fine in my FX5
It is good and works perfectly fine in my FX5. It is a bit expensive though! It comes in a nice box but I don't mind buying the foam pads in a cheap bag if this would lower its price. I'm throwing the box in the trash anyways.
G**G
Good value.
Works fantastic, tank is crystal clear.
J**R
Fits and works
Fits and workd for the fulval fx4
G**S
Muy buenas esponjas, llegaron bien, son originales.
C**N
C est un bon achat
E**O
Good 👍 👍
J**U
Passt genau, wie bestellt.
J**N
Work as needed.
Trustpilot
Hace 2 semanas
Hace 2 meses