🐠 Keep your aquatic world flawless — because your fish deserve the best!
The Fluval U4 Poly Cartridge 2-Pack offers advanced dual-sided chemical filtration with a polyester pad that traps fine debris and a side that removes harmful liquids, colorants, and odors. Designed for freshwater, saltwater, and reptile aquariums, these cartridges ensure superior water clarity and health. Backed by Fluval’s decades-long innovation legacy, they provide easy maintenance and reliable performance to keep your aquatic environment thriving.
| ASIN | B001XRVX8C |
| ASIN | B001XRVX8C |
| Allergen Information | Nut Free |
| Best Sellers Rank | #53,567 in Pet Supplies ( See Top 100 in Pet Supplies ) #687 in Aquarium Filter Accessories |
| Brand Name | Fluval |
| Customer Reviews | 4.7 4.7 out of 5 stars (1,950) |
| Date First Available | August 19, 2004 |
| Department | Unisex-Adult |
| Global Trade Identification Number | 00015561104920 |
| Included Components | Fluval U4 Poly-Carb Cartridge, Replacement Underwater Aquarium Filter Media, 2-Pack, A492 |
| Item Form | Cartridge |
| Item Type Name | Fluval U4 Poly-Carb Cartridge, Replacement Underwater Aquarium Filter Media, 2-Pack, A492 |
| Item Weight | 0.03 kg |
| Item model number | A492 |
| Manufacturer | Rolf C. Hagen (USA) Corp. |
| Manufacturer | Rolf C. Hagen (USA) Corp. |
| Manufacturer Part Number | A492 |
| Model Number | A492 |
| Number of Items | 1 |
| Number of Packs | 2 |
| Pet Type | Fish, Reptile |
| Product Dimensions | 0.59 x 2.36 x 3.38 inches; 1.13 ounces |
| Target Species | Fish |
| UPC | 015561104920 |
| Unit Count | 1 Count |
| Warranty Description | Warranty |
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