--- product_id: 274484118 title: "Fluval U2 Internal Filter Carbon Cartridge" brand: "fluval" price: "FREE" currency: EUR in_stock: false reviews_count: 5 category: "Fluval" url: https://www.desertcart.pt/products/274484118-fluval-u2-internal-filter-carbon-cartridge store_origin: PT region: Portugal --- # Compatible with fresh & saltwater Dual-sided chemical filtration Polyester pad traps fine debris Fluval U2 Internal Filter Carbon Cartridge **Brand:** fluval **Price:** FREE **Availability:** ❌ Out of Stock ## Summary > 🌟 Elevate your aquarium’s clarity game—because your fish deserve the best! ## Quick Answers - **What is this?** Fluval U2 Internal Filter Carbon Cartridge by fluval - **How much does it cost?** FREE with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/274484118-fluval-u2-internal-filter-carbon-cartridge) ## Best For - fluval enthusiasts ## Why This Product - Trusted fluval brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Convenient 2-Pack Value:** Keep your aquarium pristine longer with a ready-to-use double pack, ensuring uninterrupted filtration. - • **Trusted Legacy Innovation:** From the pioneers of 3-stage filtration technology, experience industry-leading quality and performance. - • **Dual-Action Filtration Power:** Polyester side captures micro debris while carbon side neutralizes odors and harmful substances. - • **Maintain Crystal Clear Water:** Effortlessly sustain a healthy aquatic environment that impresses guests and keeps your aquatic friends thriving. - • **Versatile Aquarium Compatibility:** Perfectly engineered for freshwater, saltwater, and reptile tanks—one cartridge fits all your aquatic needs. ## Overview The Fluval U2 Internal Filter Carbon Cartridge features dual-sided filtration with a polyester pad for fine debris and activated carbon for chemical impurities, suitable for freshwater, saltwater, and reptile tanks. Sold in a convenient 2-pack, it ensures effective chemical filtration to maintain a clean, odor-free aquatic environment, backed by Fluval’s decades-long innovation legacy. ## Description Product Description Fluval U2 Poly-Carb Cartridges has two unique filtering sides that combine to provide thorough chemical filtration, the crucial second stage in the filtration process. The polyester filter pad side filters out fine debris and contaminants. The carbon side filters out harmful liquid substances, colorants and odors. The Fluval Poly-Carb Cartridge helps keep your aquarium healthy and clean. For more fish tank accessories, check out other Fluval products including aquarium filters, aquarium heaters, aquarium air pumps, aquarium lights, aquarium rocks, aquarium thermometers, and aquarium stands. Fluval has a wide variety of products that are perfect for your pet fish to enjoy in any large fish tank, small fish tank, saltwater tank or freshwater tank. Fluval broke onto the aquatic scene in 1975 by introducing the world’s first 3-stage filter with synchronous motor technology – a breakthrough that is still applied in the industry today. Since then, Fluval has built a legacy around this pioneering spirit, relentlessly adapting in a changing world to launch innovative aquarium products that remain at the forefront of technology, and which set the bar in quality, style and functionality. Fluval’s mission is not just about building products that mimic the natural world, but inspiring aquarists of all skill levels to enjoy and respect the hobby for generations to come. Set Contains: Cartridge Review: Impressed with Results - I’ve been using the Fluval U2 Chemical Filter Cartridges for a few weeks now, and the difference in tank cleanliness is night and day. These cartridges do a fantastic job keeping my water clean and clear. The dual-sided design is especially effective—one side traps fine particles like debris and uneaten food, while the carbon side removes odors and discoloration. Within just a day or two of use, I noticed a significant improvement in water clarity and smell. I use them in a freshwater setup, but it’s great to know they’re also safe for saltwater and reptile tanks. Plus, installation in my Fluval U2 filter was quick and easy. If you’re looking for an efficient, no-fuss solution to maintaining a spotless tank, I highly recommend these cartridges. My fish seem happier, and I’m spending less time on water changes and tank maintenance! Review: Super - Super acheter en spécial en plus j'ai des rechange pour mon filtreur à poisson ## Features - Provides effective chemical filtration - Polyester side filters out fine debris and contaminants - Carbon side filters out harmful liquid substances, colourants and odours - Suitable for freshwater, saltwater or reptile environments - Convenient 2-pack format ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B001XRR3YA | | Best Sellers Rank | #68,109 in Kitchen ( See Top 100 in Kitchen ) #254 in Water Filter Cartridges | | Brand | Fluval | | Brand Name | Fluval | | Customer Reviews | 4.7 out of 5 stars 2,509 Reviews | | Global Trade Identification Number | 00015561104906 | | Item Form | Solid | | Item Type Name | U2 Poly/Carbon Cartridge (2pcs) | | Item Weight | 32 g | | Item form | Solid | | Item weight | 32 g | | Manufacturer | Hagen | | Manufacturer Part Number | A490 | | Model Number | A490 | | Number of Items | 1 | | Pet Type | Fish | | Target Species | Reptile | | UPC | 015561104906 | | Unit Count | 2 Count | | Unit count | 2 Count | ## Product Details - **Brand:** Fluval - **Item form:** Liquid - **Item weight:** 0.1 Pounds - **Manufacturer:** Hagen - **UPC:** 015561104906 ## Images ![Fluval U2 Internal Filter Carbon Cartridge - Image 1](https://m.media-amazon.com/images/I/61SrGfCi9vL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Impressed with Results *by F***E on 2 July 2025* I’ve been using the Fluval U2 Chemical Filter Cartridges for a few weeks now, and the difference in tank cleanliness is night and day. These cartridges do a fantastic job keeping my water clean and clear. The dual-sided design is especially effective—one side traps fine particles like debris and uneaten food, while the carbon side removes odors and discoloration. Within just a day or two of use, I noticed a significant improvement in water clarity and smell. I use them in a freshwater setup, but it’s great to know they’re also safe for saltwater and reptile tanks. Plus, installation in my Fluval U2 filter was quick and easy. If you’re looking for an efficient, no-fuss solution to maintaining a spotless tank, I highly recommend these cartridges. My fish seem happier, and I’m spending less time on water changes and tank maintenance! ### ⭐⭐⭐⭐⭐ Super *by M***E on 13 August 2023* Super acheter en spécial en plus j'ai des rechange pour mon filtreur à poisson ### ⭐⭐⭐⭐⭐ GENIAL :-) *by B***S on 19 April 2024* PERFECTO , CUMPLE TODAS MIS ESPECTATIVAS ## Frequently Bought Together - Fluval U2 Internal Filter Carbon Cartridge - Fluval U2 Internal Filter Foam Pad - Fluval U Internal Filters Clean and Clear Cartridge, White --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.pt/products/274484118-fluval-u2-internal-filter-carbon-cartridge](https://www.desertcart.pt/products/274484118-fluval-u2-internal-filter-carbon-cartridge) --- *Product available on Desertcart Portugal* *Store origin: PT* *Last updated: 2026-09-30*