--- product_id: 82370350 title: "Eheim Jager Aquarium Thermostat Heater 300W" brand: "eheim" price: "฿611" currency: THB in_stock: false reviews_count: 6 url: https://www.desertcart.co.th/products/82370350-eheim-jager-aquarium-thermostat-heater-300w store_origin: TH region: Thailand --- # ±0.5°F TruTemp recalibration 100% fully submersible dry-run safety auto shutoff Eheim Jager Aquarium Thermostat Heater 300W **Brand:** eheim **Price:** ฿611 **Availability:** ❌ Out of Stock ## Summary > 🔥 Keep your tank’s vibe just right — precision heating that never quits! 💧 ## Quick Answers - **What is this?** Eheim Jager Aquarium Thermostat Heater 300W by eheim - **How much does it cost?** ฿611 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/82370350-eheim-jager-aquarium-thermostat-heater-300w) ## Best For - eheim enthusiasts ## Why This Product - Trusted eheim brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Safe & Sound:** Automatic shutoff protects your aquatic friends by preventing overheating when water levels drop. - • **Built to Last:** Shock-resistant, shatterproof glass ensures durability in both fresh and marine environments. - • **Instant Status:** On/Off indicator light gives you quick, at-a-glance peace of mind on heater operation. - • **Precision Perfected:** TruTemp dial lets you recalibrate within ±0.5°F for aquarium climate control that’s always spot on. - • **Fully Submersible Freedom:** 100% waterproof design means you can place it anywhere in your tank without worry. ## Overview The Eheim Jager 300W Aquarium Thermostat Heater offers precise temperature control with a TruTemp dial adjustable within ±0.5°F, ensuring optimal aquatic conditions. Fully submersible and built with shock-resistant glass, it features a dry-run safety auto shutoff and an on/off indicator light for reliable, worry-free operation in both fresh and marine tanks. ## Description All 9 EHEIM Heater models are 100% fully submersible and come with a new TruTemp dial that allows the user to recalibrate the heater within a +/- 0.5F degree accurancy for precise temperature readings. Review: Five Stars - fantastic product always hi quality and reliability from Eheim, an excellent product for small aquariums, top marks Review: Have been using on 180 gallon reef tank for 8 months now and this heater has performed flawlessly. Quality product as one would expect from a reputable company like Eheim. Only small complaint would be the very large size of this heater, make sure yiu have the room to accomodate it before purchasing. Look forward to implementing more of their products in the future. ## Features - Fully submersible - Thermo safey control protects against running dry - Will automatically turn off when water level dips too low - TruTemp dial recalibrates the heater for precise temperature regulation - Made of shock resistant and shatter proof glass for fresh or marine water - On/Off indicator light for at-a-glance monitoring ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B003I5UC0W | | Batteries Included | No | | Batteries required | No | | Best Sellers Rank | 213,984 in Pet Supplies ( See Top 100 in Pet Supplies ) 421 in Aquarium Heaters | | Colour | BLACK | | Customer Reviews | 4.4 4.4 out of 5 stars (5,643) | | Date First Available | 7 Feb. 2012 | | Item Weight | 374 g | | Item model number | 3619090 | | Number of Items | 1 | | Quantity | 1 | | Size | 300W US | | Specific Uses | Aquarium Temperature Control | | Wattage | 300 watts | ## Images ![Eheim Jager Aquarium Thermostat Heater 300W - Image 1](https://m.media-amazon.com/images/I/617tBxtuJxL.jpg) ![Eheim Jager Aquarium Thermostat Heater 300W - Image 2](https://m.media-amazon.com/images/I/31DTSO8mHlL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Five Stars *by A***Y on 3 June 2015* fantastic product always hi quality and reliability from Eheim, an excellent product for small aquariums, top marks ### ⭐⭐⭐⭐⭐ Review *by T***R on 29 August 2017* Have been using on 180 gallon reef tank for 8 months now and this heater has performed flawlessly. Quality product as one would expect from a reputable company like Eheim. Only small complaint would be the very large size of this heater, make sure yiu have the room to accomodate it before purchasing. Look forward to implementing more of their products in the future. ### ⭐⭐⭐⭐⭐ Review *by M***. on 21 April 2016* I've raised fish for many years and have to say the Eheim products are great. I have owned this brand heaters for probably 20 years and they have always been great performers. Very accurate temperature settings and very tight control on water temperature fluctuations as long as you install them properly (vertical near water flow). They cost a little more than the bargain brand heaters but are worth every penny. These are made in Germany (not china) and will last you a long time. I would recommend them to anyone. Nothing is worse than to discover your bargain priced heater failed and killed off the valuable fish in one of your aquariums! If I had to give any negatives about the heaters, I would say that the color is a bit loud. They used to all be green with a green cord and they blended really nicely with the décor in a well laid out aquarium. Now the blue color with white lettering and red ring is not as visually appealing but I would not take away a star for that. I've included a pic of the heater in my tank so you can see what they look like in real life. Oh and this is not one of those free items in exchange for my review... I paid for this heater! ## Frequently Bought Together - Eheim 3619090 Jager Aquarium Thermostat Heater 300W, Black - Inkbird Freshwater Saltwater Aquarium Heater with Probe Thermostat and Thermometer Tropical Fish/Ornamental Shrimp/Reef Tanks 24 Hours Double Time with Day Night Automatic Temperature Controller - PAIZOO Fish Tank Digital Thermometer Accurate LED Display to ±0.9°F Tank Thermometer Aquarium Temperature Measurement Suitable for Fish, Axolotl, Turtle or Aquatic --- ## 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.co.th/products/82370350-eheim-jager-aquarium-thermostat-heater-300w](https://www.desertcart.co.th/products/82370350-eheim-jager-aquarium-thermostat-heater-300w) --- *Product available on Desertcart Thailand* *Store origin: TH* *Last updated: 2026-06-10*