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🧼 Keep your aquatic world crystal clear with Fluval’s precision bio-foam!
The Fluval U4 Bio-Foam Pad is a custom-designed replacement filter media that provides effective mechanical filtration by capturing large debris and particles. Its optimized pore size ensures efficient water flow with less clogging, extending filter life. Compatible with freshwater, saltwater, and reptile tanks, it fits perfectly inside the Fluval U4 Underwater Filter chamber to prevent debris escape. Backed by Fluval’s legacy of innovation since 1975, this durable foam pad offers reliable, low-maintenance filtration for all aquatic enthusiasts.
| ASIN | B001XRSSJ4 |
| ASIN | B001XRSSJ4 |
| Age Range Description | All Life Stages |
| Best Sellers Rank | #33,743 in Pet Supplies ( See Top 100 in Pet Supplies ) #390 in Aquarium Filter Accessories |
| Brand Name | Fluval |
| Color | White |
| Customer Reviews | 4.7 4.7 out of 5 stars (1,600) |
| Date First Available | August 19, 2004 |
| Date First Available | August 19, 2004 |
| Department | Unisex-Adult |
| Department | Unisex-Adult |
| Directions | Insert the pad into the Fluval U4 Underwater Filter chamber. Replace as needed based on filter usage and tank conditions. |
| Included Components | All items in description |
| Is Discontinued By Manufacturer | No |
| Item Dimensions LxWxH | 2.7 x 2.7 x 11 inches |
| Item Package Dimensions L x W x H | 11.14 x 2.72 x 1.54 inches |
| Item Weight | 0.04 Kilograms |
| Item model number | A488 |
| Item model number | A488 |
| Manufacturer | Rolf C. Hagen (USA) Corp. |
| Manufacturer | Rolf C. Hagen (USA) Corp. |
| Material | Plastic |
| Model Name | Hagen FLUVAL U4 FOAM PAD |
| Number of Items | 1 |
| Product Dimensions | 2.7 x 2.7 x 11 inches; 1.34 ounces |
| Size | U4 |
| Specific Uses for Product | Indoor |
| Style | Bio-Foam |
| Target Audience Keyword | algae-eaters, arachnids, arthropods, bats-animals, bearded-dragons, bees, beetles, betta-fish, bottom-feeder-fish, butterflies, cichlid-fish, crabs, dragonflies, fish, frogs, geckos, goldfish, hermit-crabs, iguanas, insects, invertebrate-fish, ladybugs, lizards, mollusks, newts, octopuses, rays, reptiles, salamanders, sharks, snails, snakes, spiders, tortoises, turtles |
| Warranty Description | Manufacturer Warranty |
A**R
Works great
fit like they should, some people don't like this filter in the reviews but they do a decent job and are easy to take to take out and rinse.
D**.
Great quality unless you build your own filters.
Go with the name brand. Save the headache.
N**E
Special water filters for aquariums
Can’t find these in stores any more. Happy I could find them on Amazon. They fit my aquarium filter perfectly
J**N
Quality filter
I have had this filter on subscription for 2+ years and will continue to use them until my turtles water filter quits working.
M**E
Works
I use the U4 along with Fluval's hangon tank filter in a 55g for water turtles. They together keep the tank ok and cheaper right now than the FX I want. But this is short term solution and they filters are at opposite ends of tank to push together dirty water. SO while this works, I wouldn't recommend others do it if they can afford the FX series for water turtles. This is best for fish, and haven't had any problems with my feeder fish getting into this filter. *Change out only one side(there are 2) at a time to keep the good biological bacteria.
D**Y
Great
These were pretty durable. They dont stay clean long tho if you have turtles.
M**X
Not for my fish
I'm using this product for myself in the shower. I found it will remove the epidermis cells with ease. Cleaning up the product is a jif. I believe based on these facts for me, probably then, it would also make a good product for cleansing the tank.
L**S
Nice replacement sponged
Nice replacement 🧽
L**A
Deja el agua limpia.
Y**H
Acheté pour un U4, l'eau est redevenu limpide.
M**R
Super schnell, gutes Produkt, kenne ich schon lang. Vielen Dank!!!!!!
M**N
perfekt
P**N
Necessary aquarium filter item I buy these on a regular basis. They do an excellent job of filtering the aquarium. Only last so long as they have to be rinsed every few days.
Trustpilot
Hace 3 semanas
Hace 1 mes