--- product_id: 2221489 title: "Fluval Foam Filter Block (206/207/306 & 307)- 2-Pack" brand: "fluval" price: "ΰΈΏ995" currency: THB in_stock: true reviews_count: 13 url: https://www.desertcart.co.th/products/2221489-fluval-foam-filter-block-206-207-306-and-307-2 store_origin: TH region: Thailand --- # Supports beneficial biological filtration Mechanical filtration of large particles Prevents premature clogging Fluval Foam Filter Block (206/207/306 & 307)- 2-Pack **Brand:** fluval **Price:** ΰΈΏ995 **Availability:** βœ… In Stock ## Summary > 🧽 Keep your tank pristine and your fish thriving β€” don’t let your filter fall behind! ## Quick Answers - **What is this?** Fluval Foam Filter Block (206/207/306 & 307)- 2-Pack by fluval - **How much does it cost?** ΰΈΏ995 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/2221489-fluval-foam-filter-block-206-207-306-and-307-2) ## 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 - β€’ **Clog-Resistant Design:** Prevents premature clogging, extending the life of your entire filtration system. - β€’ **Dual-Pack Convenience:** Two foam blocks per pack, perfect for maintaining multiple Fluval filter models. - β€’ **Durable & Shape-Retentive:** Premium foam maintains shape over time, ensuring consistent filter performance without disruption. - β€’ **Biological Filtration Booster:** Porous foam structure fosters beneficial bacteria growth for a healthier aquatic environment. - β€’ **Optimized Mechanical Filtration:** Effectively traps large particulate waste to keep your aquarium crystal clear. ## Overview Fluval Foam Filter Blocks provide essential mechanical filtration by trapping large particles and preventing premature clogging in Fluval 204/205, 206/306, and 304/305 filter models. Their porous design also supports beneficial bacterial growth, enhancing biological filtration. Sold in convenient 2-packs, these durable foam blocks maintain their shape for long-lasting, reliable aquarium performance. ## Description Fluval Foam provides mechanical straining of particulate waste. It prevents particulate waste from prematurely clogging other filter media in the Module Stack. Although the primary purpose of Fluval Foam is mechanical filtration, biological activity will eventually occur within its pore structure. Review: I've been using these for years - I have a Fluval 304 filter on a 50-gallon freshwater aquarium, and I've been using these foam filters for years. I LOVE the Fluval filter... it's worked consistently and wonderfully for me for quite some time and I've not found any other filter that I've experienced or think would work as well. The Fluval 304 has 4 filtration stages, the first of which is these foam filter blocks. BEWARE... the are sold in packages of two, but the 304 (and 305) filters require FOUR of these blocks. In other words, if you want to completely replace the foam filtration stage, you have to get TWO packages. That being said, the filter works great for me and my aquarium needs only occasional maintenance. I know that there are knock-off products out there, and I've tried some in the past, but the quality of the material hasn't been the same in the ones I've tried. Since the key to making the Fluval filter work is to ensure that the water passes through each filtration stage, it's important that this foam filter block fit properly and maintain its shape. I've had other knock-off products that lose their shape, which disrupts the function of the filter. To me, it's worth it to spend a few bucks more and ensure that the filter works as intended. Review: Filters Last a Long Time - This Fluval Foam will last for a very long time; some of my Fluval foam is nearly a year old and not falling apart. The foam works great for keeping a colony of beneficial bacteria. I just rinse by swishing in de-chlorinated water every month or so. Each canister needs 4 blocks. I keep extra on hand. When one falls apart I replace it. But I leave them in as long as possible because I don't want to screw up a cycled tank. This foam goes in a canister Fluval 406 External Filter which I use for the sole purpose of growing good bacteria. This setup keeps 6 large fish healthy with consistent zero ammonia and nitrites. Bottom rack: Biofoam blocks Side panels - this product 1st rack Fluval Biomax Bio Rings - 500 grams/17.63 ounces 2nd and 3rd racks Matrix, 2 L / 67.6 oz. I also use a HOB Aqueon 06079 QuietFlow 55/75 Power Filter, 400-GPH to clean the water. I like the Aqueon above all others for getting water clean, you can't beat it! I insert cut pieces of Morning Glory Queen/King Low Loft Batting, 110-Inch by 110-Inch (bought at Walmart) into the Aqueon - replacing the batting when it gets dirty, at least once a week. It's more economical than buying the Aqueon filter replacements. ## Features - Provides mechanical filteration of large particles - Prevents premature clogging - Enhances biological filtration - 2-pack; Suitable for Fluval 204/205, 206/306 and 304/305 Filters ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B001D02O64 | | ASIN | B001D02O64 | | Allergen Information | Nut Free | | Best Sellers Rank | #73,317 in Pet Supplies ( See Top 100 in Pet Supplies ) #1,142 in Aquarium Filter Accessories | | Brand Name | Fluval | | Customer Reviews | 4.7 4.7 out of 5 stars (2,308) | | Date First Available | June 20, 2004 | | Department | Unisex-Adult | | Global Trade Identification Number | 00015561102223 | | Included Components | Fluval Filter Foam Block 204/205/206/304/305/306 Models (2 pack) | | Is Discontinued By Manufacturer | No | | Item Type Name | Fluval Foam Filter Block (206/207/306 & 307)- 2-Pack | | Item Weight | 0.03 Kilograms | | Item model number | A222A1 | | Manufacturer | Rolf C. Hagen (USA) Corp. | | Manufacturer | Rolf C. Hagen (USA) Corp. | | Manufacturer Part Number | A222 | | Model Number | A222A1 | | Product Dimensions | 3.1 x 3.1 x 2 inches; 0.88 ounces | | Target Species | Fish | | UPC | 015561102223 | | Unit Count | 2 Count | | Warranty Description | Warranty | ## Product Details - **Brand:** Fluval - **Global Trade Identification Number:** 00015561102223 - **Item Weight:** 0.03 Kilograms - **Manufacturer:** Rolf C. Hagen (USA) Corp. - **UPC:** 015561102223 ## Images ![Fluval Foam Filter Block (206/207/306 & 307)- 2-Pack - Image 1](https://m.media-amazon.com/images/I/51oxCR5BDCL.jpg) ![Fluval Foam Filter Block (206/207/306 & 307)- 2-Pack - Image 2](https://m.media-amazon.com/images/I/71QnwtTclgL.jpg) ![Fluval Foam Filter Block (206/207/306 & 307)- 2-Pack - Image 3](https://m.media-amazon.com/images/I/411MCpPYOJL.jpg) ![Fluval Foam Filter Block (206/207/306 & 307)- 2-Pack - Image 4](https://m.media-amazon.com/images/I/71ZMRfCc1mL.jpg) ![Fluval Foam Filter Block (206/207/306 & 307)- 2-Pack - Image 5](https://m.media-amazon.com/images/I/819f24YDftL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ I've been using these for years *by D***T on February 22, 2014* I have a Fluval 304 filter on a 50-gallon freshwater aquarium, and I've been using these foam filters for years. I LOVE the Fluval filter... it's worked consistently and wonderfully for me for quite some time and I've not found any other filter that I've experienced or think would work as well. The Fluval 304 has 4 filtration stages, the first of which is these foam filter blocks. BEWARE... the are sold in packages of two, but the 304 (and 305) filters require FOUR of these blocks. In other words, if you want to completely replace the foam filtration stage, you have to get TWO packages. That being said, the filter works great for me and my aquarium needs only occasional maintenance. I know that there are knock-off products out there, and I've tried some in the past, but the quality of the material hasn't been the same in the ones I've tried. Since the key to making the Fluval filter work is to ensure that the water passes through each filtration stage, it's important that this foam filter block fit properly and maintain its shape. I've had other knock-off products that lose their shape, which disrupts the function of the filter. To me, it's worth it to spend a few bucks more and ensure that the filter works as intended. ### ⭐⭐⭐⭐⭐ Filters Last a Long Time *by J***0 on October 30, 2013* This Fluval Foam will last for a very long time; some of my Fluval foam is nearly a year old and not falling apart. The foam works great for keeping a colony of beneficial bacteria. I just rinse by swishing in de-chlorinated water every month or so. Each canister needs 4 blocks. I keep extra on hand. When one falls apart I replace it. But I leave them in as long as possible because I don't want to screw up a cycled tank. This foam goes in a canister Fluval 406 External Filter which I use for the sole purpose of growing good bacteria. This setup keeps 6 large fish healthy with consistent zero ammonia and nitrites. Bottom rack: Biofoam blocks Side panels - this product 1st rack Fluval Biomax Bio Rings - 500 grams/17.63 ounces 2nd and 3rd racks Matrix, 2 L / 67.6 oz. I also use a HOB Aqueon 06079 QuietFlow 55/75 Power Filter, 400-GPH to clean the water. I like the Aqueon above all others for getting water clean, you can't beat it! I insert cut pieces of Morning Glory Queen/King Low Loft Batting, 110-Inch by 110-Inch (bought at Walmart) into the Aqueon - replacing the batting when it gets dirty, at least once a week. It's more economical than buying the Aqueon filter replacements. ### ⭐⭐⭐⭐⭐ Good *by K***T on October 19, 2025* Exact fit easy to install. ## Frequently Bought Together - Fluval Foam Filter Block (206/207/306 & 307)- 2-Pack - Fluval Carbon Filter Media for Aquariums, Premium Bituminous Carbon Inserts, 100-gram Nylon Bags, 3 Count (Pack of 1), A1440 - Fluval BioMax Biological Material Remover, 500 g - Biological Filter Media for Aquariums --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.th/products/2221489-fluval-foam-filter-block-206-207-306-and-307-2](https://www.desertcart.co.th/products/2221489-fluval-foam-filter-block-206-207-306-and-307-2) --- *Product available on Desertcart Thailand* *Store origin: TH* *Last updated: 2026-04-24*