--- product_id: 18054045 title: "Fluval U1 Bio-Foam Pad, Replacement Underwater Aquarium Filter Media, Black" brand: "fluval" price: "S/.20" currency: PEN in_stock: true reviews_count: 13 category: "Fluval" url: https://www.desertcart.pe/products/18054045-fluval-u1-bio-foam-pad-replacement-underwater-aquarium-filter-media store_origin: PE region: Peru --- # Versatile environments Effective filtration Long-lasting use Fluval U1 Bio-Foam Pad, Replacement Underwater Aquarium Filter Media, Black **Brand:** fluval **Price:** S/.20 **Availability:** ✅ In Stock ## Summary > 🌊 Dive into clarity with Fluval! ## Quick Answers - **What is this?** Fluval U1 Bio-Foam Pad, Replacement Underwater Aquarium Filter Media, Black by fluval - **How much does it cost?** S/.20 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pe](https://www.desertcart.pe/products/18054045-fluval-u1-bio-foam-pad-replacement-underwater-aquarium-filter-media) ## 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 - • **Perfect Fit:** Engineered to seamlessly integrate with the Fluval U1 filter for optimal performance. - • **Clog-Free Flow:** Designed with ideal pore size to minimize clogging and maximize water flow. - • **Eco-Friendly Choice:** Sustainable filtration solution that keeps your aquatic life thriving. - • **Crystal Clear Waters:** Experience pristine water clarity with advanced mechanical filtration. - • **Multi-Environment Use:** Perfect for freshwater, saltwater, or reptile habitats—one pad fits all! ## Overview The Fluval U1 Bio-Foam Pad is a high-performance replacement filter media designed for the Fluval U1 Underwater Filter. It offers effective mechanical filtration, ensuring that debris is trapped while allowing optimal water flow. Suitable for various aquatic environments, this pad is built to last, making it an essential component for maintaining a healthy aquarium or reptile habitat. ## Description The Fluval Bio-Foam Pad was designed specifically for the U1 Underwater Filter model to captures large particles and debris for effective mechanical filtration, the crucial first stage in the filtration process. Custom fit to prevent bypass, the pad has a pore size that allows efficient water flow with less clogging for long-lasting filtration. The Fluval Bio-Foam Pad is suitable for freshwater, marine or reptile environments. 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. Review: A fine piece of manufactured sponge shaped to fit the Fluval U1 pump/filter - This is a review of the Fluval U1 filter for the Fluval U1 pump It's a manufactured sponge, shaped to fit inside the Fluval U1 filter, nothing more or less. It works great in the U1. There is no bio media, no charcoal, nothing to see here but a sponge. (I think the U2 and up models have fancier filtration.) I use my U1 as a cleaning aid before water changes. I remove the fishies, immerse the U1 in the tank, plug it in and then blast the substrate with a turkey baster That blows all kinds of nasty crud out of the substrate and suspends it in the water, where the U1 can suck up the crud. I keep doing that until the water is reasonably clear. That may require removing the U1 and rinsing the filter under running water and then putting it back in for another go, especially the first time you do it. Then I do a normal partial water change. When done, I remove the filter, rinse it and set it out to dry. There's no need to replace it as long as cleans up nicely under running water. Note: if you try this method, the first time you do it you will be entirely grossed out by the amount of crud in your substrate which you probably thought was as pure as the driven snow. Stay calm and don't try for spotless the first week. Things will get better as you repeat the technique over time The main point to understand is that, at least in my experience, these filters will last a very long time without replacement if you rinse them thoroughly between uses. They're just sponges. Review: Works as it should - I rarely replace but sometimes it can turn very disguising and need replacement, this sponge lasts very long. I suggest soaking it in the aquarium for a week or two first so bacteria collects on it so your tank doesn't go nuts with the cycle. Look it up if you don't get what I mean. ## Features - Provides effective mechanical filtration - Fits perfectly inside the filter chamber to prevent debris from escaping - Ideal pore size allows efficient water flow, less clogging and long-lasting filtration - Suitable for freshwater, saltwater or reptile environments - Specially designed for use with the Fluval U1 Underwater Filter ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B001XRTT5Q | | Best Sellers Rank | #125,647 in Pet Supplies ( See Top 100 in Pet Supplies ) #2,029 in Aquarium Filter Accessories | | Brand | Fluval | | Brand Name | Fluval | | Customer Reviews | 4.6 out of 5 stars 644 Reviews | | External Testing Certification | NSF | | Global Trade Identification Number | 00015561104852, 20015561104856 | | Included Components | Fluval U1 Bio-Foam Pad, Replacement Underwater Aquarium Filter Media, A485,Black | | Item Dimensions D x W x H | 2"D x 3"W x 2"H | | Item Type Name | Fluval U1 Bio-Foam Pad, Replacement Underwater Aquarium Filter Media, A485,Black | | Item Weight | 18.14 g | | Manufacturer | Rolf C. Hagen (USA) Corp. | | Manufacturer Part Number | A485 | | Manufacturer Warranty Description | Warranty | | Material | Plastic | | Material Type | Plastic | | Model Number | A485 | | Number of Items | 1 | | Number of Packs | 1 | | Product Benefits | Removes Impurities | | Product Dimensions | 2"D x 3"W x 2"H | | Set Name | Fluval U1 Underwater Filter Set | | UPC | 015561104852 | | Unit Count | 1 Count | ## Product Details - **Material:** Plastic - **Product Dimensions:** 2"D x 3"W x 2"H - **Item Weight:** 0.04 Pounds - **External Testing Certification:** NSF - **Product Benefits:** Removes Impurities ## Images ![Fluval U1 Bio-Foam Pad, Replacement Underwater Aquarium Filter Media, Black - Image 1](https://m.media-amazon.com/images/I/71GOJx4+RjL.jpg) ## Available Options This product comes in different **Size, Style** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ A fine piece of manufactured sponge shaped to fit the Fluval U1 pump/filter *by J***. on April 7, 2015* This is a review of the Fluval U1 filter for the Fluval U1 pump It's a manufactured sponge, shaped to fit inside the Fluval U1 filter, nothing more or less. It works great in the U1. There is no bio media, no charcoal, nothing to see here but a sponge. (I think the U2 and up models have fancier filtration.) I use my U1 as a cleaning aid before water changes. I remove the fishies, immerse the U1 in the tank, plug it in and then blast the substrate with a turkey baster That blows all kinds of nasty crud out of the substrate and suspends it in the water, where the U1 can suck up the crud. I keep doing that until the water is reasonably clear. That may require removing the U1 and rinsing the filter under running water and then putting it back in for another go, especially the first time you do it. Then I do a normal partial water change. When done, I remove the filter, rinse it and set it out to dry. There's no need to replace it as long as cleans up nicely under running water. Note: if you try this method, the first time you do it you will be entirely grossed out by the amount of crud in your substrate which you probably thought was as pure as the driven snow. Stay calm and don't try for spotless the first week. Things will get better as you repeat the technique over time The main point to understand is that, at least in my experience, these filters will last a very long time without replacement if you rinse them thoroughly between uses. They're just sponges. ### ⭐⭐⭐⭐⭐ Works as it should *by N***S on May 9, 2025* I rarely replace but sometimes it can turn very disguising and need replacement, this sponge lasts very long. I suggest soaking it in the aquarium for a week or two first so bacteria collects on it so your tank doesn't go nuts with the cycle. Look it up if you don't get what I mean. ### ⭐⭐⭐⭐⭐ Use the fluval sponge, don't improvise *by C***8 on November 15, 2020* I purchased a used fluval u1 filter for a very low price, and assumed I could just stick some extra foam in it that I had lying around. It would get clogged in 3-4 days and was driving me nuts. Seeing the price for the actual sponge was so cheap, I decided to give it a try. Works like a charm! Greatly decreases the frequency with which I have to service the filter. ## Frequently Bought Together - Fluval U1 Bio-Foam Pad, Replacement Underwater Aquarium Filter Media, A485,Black - Fluval U Underwater Filter BioMax --- ## 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.pe/products/18054045-fluval-u1-bio-foam-pad-replacement-underwater-aquarium-filter-media](https://www.desertcart.pe/products/18054045-fluval-u1-bio-foam-pad-replacement-underwater-aquarium-filter-media) --- *Product available on Desertcart Peru* *Store origin: PE* *Last updated: 2026-09-29*