--- product_id: 221475423 title: "MALIDA Auto Water Filler Power Free Water Level Controller Auto-top-Off Automatic Marine Aquarium Water Changer with Float Valve, Vacuum Water Flow Regulator and Controller Perfect for Adding Water." brand: "malida" price: "¥8665" currency: JPY in_stock: true reviews_count: 8 category: "Malida" url: https://www.desertcart.jp/products/221475423-malida-auto-water-filler-power-free-water-level-controller-auto store_origin: JP region: Japan --- # 8m RO tubing included Auto water level control Adjustable float valve MALIDA Auto Water Filler Power Free Water Level Controller Auto-top-Off Automatic Marine Aquarium Water Changer with Float Valve, Vacuum Water Flow Regulator and Controller Perfect for Adding Water. **Brand:** malida **Price:** ¥8665 **Availability:** ✅ In Stock ## Summary > 💧 Keep your aquarium flawless—automate water top-offs like a pro! ## Quick Answers - **What is this?** MALIDA Auto Water Filler Power Free Water Level Controller Auto-top-Off Automatic Marine Aquarium Water Changer with Float Valve, Vacuum Water Flow Regulator and Controller Perfect for Adding Water. by malida - **How much does it cost?** ¥8665 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/221475423-malida-auto-water-filler-power-free-water-level-controller-auto) ## Best For - malida enthusiasts ## Why This Product - Trusted malida brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Precision Float Valve:** Corrosion-resistant engineering plastic shaft allows tool-free angle adjustments for flawless water flow control. - • **Versatile Installation:** Double hanging system fits aquariums up to 19mm glass thickness with adjustable water level range from 0.5 to 15 cm. - • **Effortless Auto Top-Off:** Maintains perfect water levels without electricity or pumps, ensuring your aquatic ecosystem thrives 24/7. - • **Long Reach & Lightweight:** Includes 8 meters (20ft) of premium RO tubing and weighs only 200g for easy setup and compact storage. - • **Fish-Friendly Environment:** Creates gentle bubbles and stable water conditions that your fish will love, enhancing their habitat naturally. ## Overview The MALIDA Auto Water Filler is a modern, power-free aquarium water level controller featuring a corrosion-resistant float valve, versatile hanging installation, and an 8-meter RO tubing set. Designed for effortless, precise water replenishment, it ensures a stable aquatic environment while being lightweight and easy to store. ## Description Features: √The equipped RO white 1/4 inch OD tube is five meters. Plastic hanger can be applied to the thickest glass of 19mm. When the L bracket is installed reversely, the water level height will be 5-15cm, on the contrary, when the L bracket is installed normal, and the distance between the water surface and the edge of the cylinder will be adjusted in 15-25cm. The reverse installation of L bracket will be more difficult. √The replenishment tank can be recognized as the water adding device installed at the bottom of the tank (After the seawater evaporates every day, the water in upper district will appear). When replenishing the water, the aquarium water adding device will take advantage of the atmospheric pressure or the water pressure to replenish water, and no additional water pump is needed. √If the back filter cylinder cannot be used, there should be no space. Before using the fish tank water adding device, you have to check it to ensure security. The valve should not be opened too much as the heavy pressure will cause the tube lose control. Please choose the device carefully Package includes: √Retractable plastic rack*1 √RO water machine float valve*1 √8 meters 20ft white tube for RO water machine*1 √1/4 inch quick push to connector *4 Precautions √The water replenisher is just an open pipe, and the water source need to be connected to the water pipe, to achieve this, a conversion head, RO machine and water replenishment bucket are needed. Review: Very Adjustable to achieve optimal water levels with a great bag of connectors - The cost of the quick connects and RO certified tubing alone makes this worth it. (I had to pick up one of those push to connect on-off valves for another project at Home Depot for $12.55, and this set came with one thrown in). I had a similar device fail in the open position once, so I paired this with an auto cutoff Ortis WiFi Power Failure Alarm with Water Level Detection to my RO pump (https://a.co/d/9YxxFE7). However, this one seems less likely to fail as the RO water comes out right over the float joint which should keep it from getting salt build up to jam it. Review: Worked as described - Hooked up to my ro system to my reservoir and it worked great kept me from flooding my basement. Fits well to a 32 gal trash can or anything similar. You can adjust the float level to an extent. ## Features - 【WIDE APPLICATION】The aquarium water adding device can be used to replenish fresh water in fish tanks and improve fish living environment, creating a great deal of bubbles that your fish loves. The fish tank water changer features fully automatic start and stopping, no electricity is needed. - 【VARIOUS INSTALLATION】The ATO system is easy to hang on to your aquarium sump. The unique double hanging device can be directly hung on aquariums or fish tanks. The updated water level adjustment device, which enjoys a larger rotation range, replaces the original bracket adjustment, and the aquarium water changer can be applied to water level range from 0.5 to 15 cm. - 【FLOAT VALVE】The unique float valve: the adjustment shaft adopts engineering plastic instead of metal screw, and you don’t need to worry about corrosion. You can adjust the ideal angle by hands and no extra tool. Furthermore, the multi-purpose bracket can fix water replenisher firmly. The water level controller can work with water purifier and normal water bucket, a superior supply for both fish tanks and aquarium. - 【EASY STORAGE】The aquarium water changer abandoned the crude benzene hose, and the aquarium water replenisher can be connected to 8 meters 20Ft white cube, weighs 200 grams, which is easier for adding water and storage. Floating ball is small in volume and will not occupy the space in the fish tank. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B089WK238S | | ASIN | B089WK238S | | Additional Features | Lightweight | | Best Sellers Rank | #69,087 in Pet Supplies ( See Top 100 in Pet Supplies ) #260 in Aquarium Air Pump Accessories | | Brand Name | Malida | | Color | white | | Customer Reviews | 4.4 4.4 out of 5 stars (177) | | Date First Available | June 9, 2020 | | Included Components | Retractable plastic rack, RO water machine float valve, 8 meters 20ft white tube for RO water machine, 1/4 inch quick push to connectors | | Item Shape | Cylindrical | | Item Weight | 200 Grams | | Manufacturer | MALIDA | | Manufacturer | MALIDA | | Material Type | Metal, Plastic | | Package Dimensions | 8.23 x 7.76 x 2.13 inches; 7.05 ounces | | Product Style | Modern | | Specific Uses For Product | Aquarium and Fish Tank Water Maintenance, Fish Habitat Improvement, Stable Water Environment for Aquatic Species | | Tank Volume | 1.5 Liters | | Target Species | Fish | | UPC | 644824372105 | | Unit Count | 1 Count | | Vivarium Type | Aquarium | ## Product Details - **Brand:** Malida - **Color:** white - **Item Weight:** 200 Grams - **Material:** Metal, Plastic - **Shape:** Cylindrical - **Special Feature:** Lightweight - **Style:** Modern - **Tank Volume:** 1.5 Liters ## Images ![MALIDA Auto Water Filler Power Free Water Level Controller Auto-top-Off Automatic Marine Aquarium Water Changer with Float Valve, Vacuum Water Flow Regulator and Controller Perfect for Adding Water. - Image 1](https://m.media-amazon.com/images/I/31OryF3pE0L.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Very Adjustable to achieve optimal water levels with a great bag of connectors *by D***S on May 26, 2025* The cost of the quick connects and RO certified tubing alone makes this worth it. (I had to pick up one of those push to connect on-off valves for another project at Home Depot for $12.55, and this set came with one thrown in). I had a similar device fail in the open position once, so I paired this with an auto cutoff Ortis WiFi Power Failure Alarm with Water Level Detection to my RO pump (https://a.co/d/9YxxFE7). However, this one seems less likely to fail as the RO water comes out right over the float joint which should keep it from getting salt build up to jam it. ### ⭐⭐⭐⭐⭐ Worked as described *by L***X on March 23, 2025* Hooked up to my ro system to my reservoir and it worked great kept me from flooding my basement. Fits well to a 32 gal trash can or anything similar. You can adjust the float level to an extent. ### ⭐⭐⭐⭐ Works *by A***R on September 4, 2025* Works ## Frequently Bought Together - Malida Auto Water Filler Power Free Water Level Controller Auto-top-Off Automatic Marine Aquarium Water Changer with Float Valve, Vacuum Water Flow Regulator and Controller Perfect for Adding Water. - Malida 1/4 inch O.D. Length 32.8ft(10 meters) RO Water Tubing, Hose Pipe for RO Water purifiers System,+ 1/4 O.D quick connector 10pcs - ZAOJIAO Tube Bulkhead Connector Push Fit Quick Connect for RO Water Reverse Osmosis System (Pack of 5) (1/4" Tube Bulkhead Connector) --- ## 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/221475423-malida-auto-water-filler-power-free-water-level-controller-auto](https://www.desertcart.jp/products/221475423-malida-auto-water-filler-power-free-water-level-controller-auto) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-04-23*