--- product_id: 56964466 title: "Hagen Fluval Fx5 Aquastop Valve and O-Ring, 2-Piece [Misc.]" brand: "fluval" price: "¥12093" currency: JPY in_stock: true reviews_count: 13 url: https://www.desertcart.jp/products/56964466-hagen-fluval-fx5-aquastop-valve-and-o-ring-2-piece store_origin: JP region: Japan --- # Optimal water flow control Precision fit for FX5/FX6 filters Durable elastomer material Hagen Fluval Fx5 Aquastop Valve and O-Ring, 2-Piece [Misc.] **Brand:** fluval **Price:** ¥12093 **Availability:** ✅ In Stock ## Summary > 💧 Stop leaks, start impressing – AquaStop your aquarium’s best friend! ## Quick Answers - **What is this?** Hagen Fluval Fx5 Aquastop Valve and O-Ring, 2-Piece [Misc.] by fluval - **How much does it cost?** ¥12093 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/56964466-hagen-fluval-fx5-aquastop-valve-and-o-ring-2-piece) ## 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 Compatibility:** Tailored fit for Fluval FX5 and FX6 external filters—no guesswork, just flawless operation - • **Maintenance Made Simple:** Quick and easy installation reduces downtime, so you spend more time enjoying your aquarium - • **Seamless AquaStop Valve:** Effortless water flow management for your Fluval FX5/FX6 - • **Engineered for Endurance:** Premium elastomer ensures long-lasting durability and leak-proof performance - • **Italian Innovation Inside:** Crafted with precision in Italy, combining style and function for the discerning aquarist ## Overview The Hagen Fluval FX5 Aquastop Valve and O-Ring set is a precision-engineered replacement part designed specifically for Fluval FX5 and FX6 external filters. Made from durable elastomer in Italy, it ensures reliable, leak-proof water flow control, simplifying maintenance and enhancing the legendary performance of Fluval’s high-capacity filtration systems. ## Description Fluval's FX series are high-performance and efficient external filters thanks to their SMART PUMP technology that ensures optimal performance by expelling accumulated air every 12 hours and monitoring rotor operation and water outlet. This Italian made external filter has up to 6 filtration stages that ensure crystal clear water in freshwater and saltwater aquariums. European ingenuity and innovation have fueled the next generation of FX External Filters, which feature SMART PUMP's patented optimizing performance technology. In addition to intricate multi-stage filtration, the FX Series incorporates a water change system and tray design within each basket to offer greater filter media capacity. As always, you can expect from the FX Series the legendary blend of power and efficiency that allows you to spend more time enjoying the aquarium, and less time performing maintenance. Known for its strength and durability, the FX6 offers a water output of 3,500 LPH in aquariums up to 1,500 liters. That kind of power sweeps the tank better and faster, by collecting a greater amount of debris, which ultimately translates to a lower maintenance frequency. Based on the platform of the powerful FX the FX4 and now the NEW FX2, a "little brother" of the more compact FX4 was created. Capable of giving a water output of 1800 LPH, the FX2 is an ideal choice for those with aquariums up to 750 liters. ## Features - AquaStop valve. - For the filters Fluval FX4, FX5/FX6. - Easy to use. ## Technical Specifications | Specification | Value | |---------------|-------| | Asin | B0017JG5MK | | Best Sellers Rank | 56,471 in Pet Supplies (See Top 100 in Pet Supplies) 858 in Aquarium Filter Accessories | | Brand | Fluval | | Colour | black/red | | Country Of Origin | Italy | | Customer Reviews | 4.6 4.6 out of 5 stars (1,149) 4.6 out of 5 stars | | Eu Spare Part Availability Duration | 5 Years | | Global Trade Identification Number | 00015561302166 | | Item Type Name | Aquastop valve for FX5 and FX6 filters | | Item Weight | 0.05 Kilograms | | Manufacturer | Hagen España | | Manufacturer Part Number | A20216 | | Material | Elastomer | | Model Number | A20216 | | Number Of Items | 1 | | Number Of Pieces | 1 | | Set Name | O-Ring and Aqua Stop Valve | | Unit Count | 1.0 count | | Upc | 015561302166 | ## Product Details - **Brand:** Fluval - **Colour:** black/red - **Manufacturer:** Hagen España - **Material:** Elastomer - **UPC:** 015561302166 ## Images ![Hagen Fluval Fx5 Aquastop Valve and O-Ring, 2-Piece [Misc.] - Image 1](https://m.media-amazon.com/images/I/511b2ynWDEL.jpg) ![Hagen Fluval Fx5 Aquastop Valve and O-Ring, 2-Piece [Misc.] - Image 2](https://m.media-amazon.com/images/I/71EXtgBuLVL.jpg) ![Hagen Fluval Fx5 Aquastop Valve and O-Ring, 2-Piece [Misc.] - Image 3](https://m.media-amazon.com/images/I/51XfPdVVznL.jpg) ![Hagen Fluval Fx5 Aquastop Valve and O-Ring, 2-Piece [Misc.] - Image 4](https://m.media-amazon.com/images/I/41fAa3ETKYL.jpg) ## Available Options This product comes in different **Size Name** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Good *by on Reviewed in the United Kingdom 25 November 2025* Excellent done the job expected ### ⭐⭐⭐⭐⭐ work and do not leak *by on Reviewed in the United Kingdom 14 September 2022* bought these for a fluval FX6 and they do what they are supposed to i also used some of these on my fluval FX4 and they work on that too not cheap but cheaper than replacing carpets if fish tank were to leak ### ⭐⭐⭐⭐⭐ Fluval Aquastop valve *by on Reviewed in the United Kingdom 22 November 2025* Excellent quality as you you would expect from fluval, was purchased as spare valve for fluval fx2 by swapping outlet valve on filter for this one with a length of hoseing for easier & faster water changes. ## Frequently Bought Together - Fluval Aquastop Valve For Filter FX5Y FX6 - Fluval Drain Valve External Filter FX4, FX5 and FX6, Pack of 1 - Fluval FX4 Filter Service Kit --- ## 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.jp/products/56964466-hagen-fluval-fx5-aquastop-valve-and-o-ring-2-piece](https://www.desertcart.jp/products/56964466-hagen-fluval-fx5-aquastop-valve-and-o-ring-2-piece) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-08-31*