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Ships within 48 hours · Estimated delivery Jul 21 - Jul 26
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Description
EHEIM thermocontrol 25 heaterWith the EHEIM precision heater, your fish will enjoy the perfect temperature in any aquarium. Diameter 36 mm Height 243 mm Performance at 50 Hz 25 Watt Max. temperature 34C Sea water Yes Min. temperature 18C Freshwater Yes Packing dimensions (Width) 6. 5 cm Packing dimensions (Height) 34. 5 cm Packing dimensions (Depth) 5 cm For aquariums up to approx. 25 Liter For aquariums of about 20 Liters Sometimes the simplest ideas are the most effective. Take
With the EHEIM precision heater, your fish will enjoy the perfect temperature in any aquarium. Diameter Ø36 mm Height 243 mm Performance at 50 Hz 25 Watt Max. temperature 34°C Sea water Yes Min. temperature 18°C Freshwater Yes Packing dimensions (Width) 6.5 cm Packing dimensions (Height) 34.5 cm Packing dimensions (Depth) 5 cm For aquariums up to approx. 25 Liter For aquariums of about 20 Liters Sometimes the simplest ideas are the most effective. Take the aquarium heater, for instance, which functions as a rod. This heating rod is simply submerged in the water to warm it. While the basic principle has remained unchanged for decades, significant advancements have been made since then. Today, the EHEIM adjustable heater is a state-of-the-art electronic heating device utilizing the latest technology. A jacket crafted from specialized laboratory glass enhances the heating surface, acts as a heat shield, and guarantees optimal heat distribution. Whether you need to heat a 20 or a 1000-liter aquarium, there are 9 sizes available to accommodate your needs. **Advantages of the EHEIM thermostatic heaters** - Accurate temperature adjustment from 18 to 34 °C - Easy and secure recalibration (±2 °C) - Temperature control precision of ± 0.5 °C - Maintains a consistent temperature - Heating function is signaled by a control light - Fully submersible (watertight) - Equipped with automatic dry run shut-off (Thermo Safety Control) - A glass jacket expands the heating surface and ensures effective, even heat distribution - Convenient cable length of approximately 170 cm - Comes with a double suction cup holder - Available in 9 sizes suitable for aquariums ranging from 20 to 1000 liters - Ideal for both freshwater and marine environments - Precision, user-friendliness, quality, and safety “Made in Germany” The EHEIM aquarium heater represents an evolution of the iconic heating rod. You can precisely set the temperature from 18 to 34 °C and recalibrate it as needed (±2°). The accuracy of temperature control is ± 0.5 °C, ensuring that the heat remains stable. The control lamp indicates when the heating function is active. This rod is completely watertight, can be entirely submerged, features an automatic dry run shut-off (Thermo Safety Control), and is compatible with both freshwater and saltwater. A key innovation is the glass jacket, which: - Expands the heating surface, - Concentrates the heat for optimal even heat distribution, and - Serves as a heat shield (safe to touch without harming your aquatic life). The jacket is made from specialized laboratory glass developed for research purposes, ensuring it is free from harmful pollutants that could leach into the water. It is resistant to chemical and biological substances and does not have any fissures or micro-cracks that could allow condensation to penetrate. Even extreme temperature fluctuations that may occur during water changes will not damage this durable glass.Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.0 ★★★★★
Based on 11 reviews
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Product Reviews
★★★★★ 5
5⭐
Excellent fit, super comfortable 3/11/2026 and still at it
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Reviewed in the United States on March 11, 2026
★★★★★ 5
Comfortable
Good fit and super comfortable.
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Reviewed in the United States on May 14, 2026
★★★★★ 5
Comfortable
Like them. Nice cushion, comfortable. True-to-size.
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Reviewed in the United States on March 7, 2026
★★★★★ 5
One Tough Ball!
Color: Blue
Our dogs are loving this ball. Our 1 yr old hound is a world-class chewer and he can't make a dent in this ball. The interactive buzzing and bouncing keeps them entertained for long durations. It's a mite noisy but the barking from the 1 yr old is much louder, lol. Even turned off, they like playing with it and chewing on it. Based on the tough construction, we think it will last much longer than traditional chew balls.
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Reviewed in the United States on March 22, 2026
★★★★★ 5
My puppy’s favorite
Color: Orange
Great quality and built to last. My dog really enjoys playing with it and stays entertained for quite a while. The material is strong yet safe, and the included drawstring bag is a convenient extra for easy storage.
Is colorful and my become my puppy’s favorite.
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Reviewed in the United States on March 1, 2026
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