--- product_id: 400863423 title: "Aquarium Fish Tank External Filter Box,3 in 1 Acrylic Filter Box Aquarium Hang On Filter Waterfall Increase Oxygen Water Purifier Aquarium Accessory for Round Aquarium Fish Bowl (XL)" brand: "chestnut-yx" price: "€ 56.93" currency: EUR in_stock: true category: "Chestnut Yx" url: https://www.desertcart.pt/products/400863423-aquarium-fish-tank-external-filter-box-3-in-1-acrylic store_origin: PT region: Portugal --- # 3-in-1 progressive filtration Premium acrylic clarity Oxygen-boosting waterfall outlet Aquarium Fish Tank External Filter Box,3 in 1 Acrylic Filter Box Aquarium Hang On Filter Waterfall Increase Oxygen Water Purifier Aquarium Accessory for Round Aquarium Fish Bowl (XL) **Brand:** chestnut-yx **Price:** € 56.93 **Availability:** ✅ In Stock ## Summary > 🌊 Elevate your aquarium game with crystal-clear, whisper-quiet filtration! ## Quick Answers - **What is this?** Aquarium Fish Tank External Filter Box,3 in 1 Acrylic Filter Box Aquarium Hang On Filter Waterfall Increase Oxygen Water Purifier Aquarium Accessory for Round Aquarium Fish Bowl (XL) by chestnut-yx - **How much does it cost?** € 56.93 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/400863423-aquarium-fish-tank-external-filter-box-3-in-1-acrylic) ## Best For - chestnut-yx enthusiasts ## Why This Product - Trusted chestnut-yx brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Crystal Clear Viewing:** High transparency acrylic lets you showcase your aquatic world in stunning detail. - • **Silent Waterfall Outlet:** Switch from waterfall to silent mode for peaceful, stress-free aquatic environments. - • **Tool-Friendly Edge Hole:** Convenient edge hole allows easy insertion of maintenance tools like tweezers without disruption. - • **Triple-Action Filtration:** Progressive filter design supports physical, biochemical, and oxygenation needs for thriving fish. - • **Space-Smart Curved Design:** Arc-shaped cylinder fits perfectly on round tanks without sacrificing tank space. ## Overview This XL acrylic external filter box is engineered for round aquariums, combining progressive 3-in-1 filtration with a space-saving curved design. Its high transparency offers an elegant view of your tank’s interior, while the silent waterfall outlet enhances oxygen levels quietly. Perfect for millennial aquarists seeking both style and superior water purification. ## Description Description: Effective filtering: large capacity, double the filtering effect. Progressive filtration: progressive filter tank, progressive water inlet, can be matched with different filter materials to meet the filtration needs of various fish for different water quality. Application: it can be used for fish farming/planting green plants, ecological water purification. With edge hole: the edge hole can also insert tools such as tweezers. Design: the plug is removed, the front waterfall type water outlet becomes a silent type water outlet, and the water storage in the box can be retained. Specification: Material: acrylic Color: clear Size: S, M, L, XL(cm/inch) Filter box sizediameterbox lengthbox height S18.6/7.3214.6/5.758/3.15 M22.6/8.918.6/7.328/3.15 L26.6/10.4722.6/8.98/3.15 XL30.6/12.0526.6/10.478/3.15 Curved pipe size: 1*0.8*10cm/0.39*0.31*3.94inch(outer dia*inner dia*length) Applicable inner diameter of the round fish tank: S: 15-18cm/5.91*7.09inch M: 19-22cm/7.48-8.66inch L: 23-26cm/9.06-10.24inch XL: 27-30cm/10.63-11.81inch Included: 1 x Aquarium External Filter Box Notice: Due to the different monitor and light effect, the actual color maybe a slight different from the picture color. Please allow slight differs due to manual measurement. ## Features - 【High Quality】Material: acrylic.Brand new and high quality, more sizes for choice, you can choose according to your needs. - 【Progressive filtration】Progressive filter tank, progressive water inlet, can be matched with different filter materials to meet the filtration needs of various fish for different water quality.Physical and biochemical filtration for your fish tank and increases the oxygen solubility. - 【High Transparency】High transparency, elegant and beautiful, you can clearly observe the internal changes, and the highly transparent appearance allows you to show the beautiful interior decoration - 【High Performance】External filter box for aquarium and fish tank.The cylinder angle is arc- shaped to save space,the edge hole can also insert tools such as tweezers.Specially equipped with external filter for round fish tank. - 【Design】The plug is removed, the front waterfall type water outlet becomes a silent type water outlet, and the water storage in the box can be retained.Quiet filtering system. Especially good for breeding small fish/planting green plants. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B09MZBP75W | | Best Sellers Rank | 179,971 in Pet Supplies ( See Top 100 in Pet Supplies ) 794 in Aquarium Filters | | Brand | Chestnut-YX | | Brand Name | Chestnut-YX | | Colour | XL | | Country Of Origin | China | | Included Components | Aquarium External Filter Box | | Item Shape | Round | | Item Weight | 0.3 Kilograms | | Item weight | 0.3 Kilograms | | Manufacturer | YWSM | | Manufacturer Part Number | Filter Box | | Material | Acrylic | | Material Type | Acrylic | | Model Number | Filter Box | | Number of Items | 1 | | Pet Type | Fish | | Product Style | Classic | | Shape | Round | | Special Features | Lightweight | | Special feature | Lightweight | | Style | Classic | | Target Species | Fish | | Unit Count | 300.0 gram | | Vivarium Type | Aquarium | ## Product Details - **Brand:** Chestnut-YX - **Colour:** XL - **Included components:** Aquarium External Filter Box - **Item weight:** 0.3 Kilograms - **Manufacturer:** YWSM - **Material:** Acrylic - **Shape:** Round - **Special feature:** Lightweight - **Style:** Classic ## Images ![Aquarium Fish Tank External Filter Box,3 in 1 Acrylic Filter Box Aquarium Hang On Filter Waterfall Increase Oxygen Water Purifier Aquarium Accessory for Round Aquarium Fish Bowl (XL) - Image 1](https://m.media-amazon.com/images/I/61EU-0hunIL.jpg) ![Aquarium Fish Tank External Filter Box,3 in 1 Acrylic Filter Box Aquarium Hang On Filter Waterfall Increase Oxygen Water Purifier Aquarium Accessory for Round Aquarium Fish Bowl (XL) - Image 2](https://m.media-amazon.com/images/I/61X2s6KqKvL.jpg) ![Aquarium Fish Tank External Filter Box,3 in 1 Acrylic Filter Box Aquarium Hang On Filter Waterfall Increase Oxygen Water Purifier Aquarium Accessory for Round Aquarium Fish Bowl (XL) - Image 3](https://m.media-amazon.com/images/I/619AXygcX9L.jpg) ![Aquarium Fish Tank External Filter Box,3 in 1 Acrylic Filter Box Aquarium Hang On Filter Waterfall Increase Oxygen Water Purifier Aquarium Accessory for Round Aquarium Fish Bowl (XL) - Image 4](https://m.media-amazon.com/images/I/61pc5Ws+GZL.jpg) ![Aquarium Fish Tank External Filter Box,3 in 1 Acrylic Filter Box Aquarium Hang On Filter Waterfall Increase Oxygen Water Purifier Aquarium Accessory for Round Aquarium Fish Bowl (XL) - Image 5](https://m.media-amazon.com/images/I/61z3TgOjJlL.jpg) ## Available Options This product comes in different **Color** options. --- ## 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/400863423-aquarium-fish-tank-external-filter-box-3-in-1-acrylic](https://www.desertcart.pt/products/400863423-aquarium-fish-tank-external-filter-box-3-in-1-acrylic) --- *Product available on Desertcart Portugal* *Store origin: PT* *Last updated: 2026-09-24*