--- product_id: 306601793 title: "M50 Ultra-Slim Submersible Aquarium Heater – 50W Underwater Heater for Aquariums up to 15 Gal." brand: "fluval" price: "275.65 DT" currency: TND in_stock: true category: "Fluval" url: https://www.desertcart.tn/products/306601793-m50-ultra-slim-submersible-aquarium-heater-50w-underwater-heater-aquariums store_origin: TN region: Tunisia --- # 50W power for precise heating Ultra-slim profile for sleek installation Reflective Borosilicate glass blends seamlessly M50 Ultra-Slim Submersible Aquarium Heater – 50W Underwater Heater for Aquariums up to 15 Gal. **Brand:** fluval **Price:** 275.65 DT **Availability:** ✅ In Stock ## Summary > 🔥 Sleek heat, invisible style — keep your tank cozy without the clutter! ## Quick Answers - **What is this?** M50 Ultra-Slim Submersible Aquarium Heater – 50W Underwater Heater for Aquariums up to 15 Gal. by fluval - **How much does it cost?** 275.65 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/306601793-m50-ultra-slim-submersible-aquarium-heater-50w-underwater-heater-aquariums) ## 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 - • **Peace of Mind Warranty:** 3-year limited warranty backs your investment in aquatic excellence. - • **Precision Heat Control:** Computer-calibrated thermostat with easy dial for perfect aquatic temps. - • **Space-Saving Slim Design:** Ultra-slim profile fits effortlessly in tanks up to 15 gallons without bulk. - • **Seamless Aquarium Integration:** Reflective glass design mirrors tank colors, making the heater virtually invisible. - • **Reliable European Craftsmanship:** Italian-made quality ensures durability and consistent performance. ## Overview The Fluval M50 Ultra-Slim Submersible Aquarium Heater delivers precise 50W heating for freshwater and saltwater tanks up to 15 gallons. Featuring a heat- and shock-resistant reflective Borosilicate glass tube, it blends seamlessly into your aquarium environment. Its computer-calibrated thermostat with an easy-to-use dial ensures stable temperatures between 66-86°F. Crafted with premium Italian construction and backed by a 3-year warranty, this ultra-slim heater combines style, reliability, and performance for the discerning aquarist. ## Description The Fluval M Submersible Aquarium Heater’s quality European manufacturing utilizes superior components and construction. The Fluval M50 Submersible Heater is ideal for use in freshwater and marine aquariums up to 15 gallons and has a temperature range of 66-86 degrees Fahrenheit. This sleek, compact heater can be trusted for exceptional performance and unsurpassed reliability. Unique only to the Fluval "M" series the reflective technology equipped in the Fluval M Submersible Aquarium Heaters helps maintain the aquariums' natural look as the heater reflects the colors of the surroundings.Fluval first broke onto the aquatic scene in 1975 by introducing the world’s first 3-stage filter with synchronous motor technology – a landmark 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. Above and beyond its manufacturing role, Fluval prides itself on its charitable and educational efforts that give back to the fishkeeping community, whether it means helping to fund the protection of wild coral reefs or jumping on a plane to document endangered fish species halfway around the world. 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. ## Features - Modern Aesthetic: M-Series heaters combine modern aesthetics with reliable Italian construction. Employing an ultra-slim profile, these heaters are a welcome departure from traditional, bulkier designs. - Reflective Design: This heater is encompassed in a heat-and-shock resistant reflective Borosilicate glass tube, which allows it to reflect the surrounding aquarium colors, allowing it to blend in with the environment and enhance overall aesthetics. - Temperature Control: Computer-calibrated thermostat has an easy-to-adjust temperature control dial and an on/off blue indicator light to display when it’s in use. - Slim Profile: Ultra slim design allows for easy installation in your aquarium tank. - Recommended Size: M50 underwater heater is ideal for freshwater and saltwater aquariums up to 15 gallons. Each M-Series heater comes with a 3-year limited warranty. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0027VMPXA | | Best Sellers Rank | #41,456 in Pet Supplies ( See Top 100 in Pet Supplies ) #2,616 in Aquarium Accessories | | Brand Name | Fluval | | Color | Silver | | Customer Reviews | 4.5 4.5 out of 5 stars (2,353) | | Global Trade Identification Number | 00015561107815 | | Included Components | Fluval M50 Submersible Glass Aquarium Heater (50 watts) | | Item Type Name | Submersible Heater | | Item Weight | 0.62 Pounds | | Manufacturer | Rolf C. Hagen (USA) Corp. | | Material Type | Borosilicate Glass | | Model Number | M50 | | Number of Items | 1 | | Number of Packs | 1 | | Part Number | A781 | | UPC | 015561107815 | | Unit Count | 1 Count | | Warranty Description | 3 years; The Fluval M series Submersible Aquarium Heater is guaranteed for defective parts and workmanship for a period of 3 year. We reserve the right to repair or replace, at our option. This guarantee excludes damage, breakage of the glass tube or injuries resulting from negligence or other misuse. This warranty does not include responsibility for animate or inanimate matter contained in the aq… | | Wattage | 50 watts | ## Product Details - **Brand:** Fluval - **Colour:** Silver - **Item weight:** 0.62 Pounds - **Material:** Borosilicate Glass - **Wattage:** 50 watts ## Images ![M50 Ultra-Slim Submersible Aquarium Heater – 50W Underwater Heater for Aquariums up to 15 Gal. - Image 1](https://m.media-amazon.com/images/I/71JRKsqOfHL.jpg) ## Available Options This product comes in different **Size** options. ## Frequently Bought Together - Fluval M 50-Watt Submersible Heater - PAIZOO Fish Tank Digital Thermometer Accurate LED Display to ±0.9°F Tank Thermometer Aquarium Temperature Measurement Suitable for Fish, Axolotl, Turtle or Aquatic - Hagen Flex Freshwater Kit - Black - 15 gal --- ## 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.tn/products/306601793-m50-ultra-slim-submersible-aquarium-heater-50w-underwater-heater-aquariums](https://www.desertcart.tn/products/306601793-m50-ultra-slim-submersible-aquarium-heater-50w-underwater-heater-aquariums) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-10-28*