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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
4.7 ★★★★★
Based on 13 reviews
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Product Reviews
★★★★★ 5
Our dogs favorite toy
Color: Multicolor
The slothicorn is our dogs FAVORITE toy. The rainbow coloring is so cute. She loves playing with the unicorn horn. The horn is starting to fall off, but it's lasted a while since this is her #1 choice to play with. Will order another when it finally needs to be replaced. 10/10.
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Reviewed in the United States on April 1, 2026
★★★★★ 5
The best dog toy llama!
Color: Llama
My fur baby LOVES his stuffed llama!
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Reviewed in the United States on April 13, 2026
★★★★★ 5
Perfect Squeaky Toy for My Exes Deranged Dog
Color: Multicolor, Color: Multicolor
My ex-beau and I are still friendly and we exchange Christmas presents. This year, I wanted to make sure that his utterly nutty and completely bonkers Aussie, Diego, got a new toy so that he has added enrichment in his enclosure. Diego really enjoyed this toy! A perfect size for him and a loud squeaker, which my ex will undoubtedly appreciate being squeaked non-stop while he is trying to game with his various assortment of video game people. Worth every penny. Diego’s smiling face is proof of his delight in his adorable Slothicorn. Squeak away, Diego! Squeak away!
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Reviewed in the United States on January 14, 2026
★★★★★ 4
Fun
Color: Multicolor
A little smaller than we'd hoped but all in all he's pretty cool and our dogs loved him.
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Reviewed in the United States on October 5, 2025
★★★★★ 5
Worth it!
Color: Llama
Wanted to keep this for myself! Made well, size is perfect for a 90 pound pup, durable enough for a non chewer (she cleans their fur but doesn’t chew anymore). Durable enough that has been left outside during Summer storms and washed/dryed a couple times already (I use a laundry bag) and still has its adorable shape.
Great value for the money, though I might need to buy another one for myself! *^_^*
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Reviewed in the United States on August 1, 2025
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