SKU: 1578188977

Eheim Thermocontrol e 300 Heater

Sale price$89.99 Regular price$99.99
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Description

Eheim Thermocontrol e 300 HeaterEheim Thermocontrol e 300 Heater The obvious ideas are often the best. This also applies to the aquarium heating element. It is simply hung in the water and heats it up. The principle is the same as it was decades ago. But in the meantime, the EHEIM controller heater has become an ultra modern thermal device. The temperature can be set precisely and is measured even more precisely and kept more constant by the electronics. The coating made of special

Eheim Thermocontrol e 300 Heater

The obvious ideas are often the best. This also applies to the aquarium heating element. It is simply hung in the water and heats it up. The principle is the same as it was decades ago. But in the meantime, the EHEIM controller heater has become an ultra-modern thermal device. The temperature can be set precisely and is measured even more precisely and kept more constant by the electronics. The coating made of special laboratory glass increases the heating surface, serves as a heat shield and ensures even heat emission.

Diameter: 36mm
Min. temp: 20 degrees
Max. temp: 32 degrees
Performance at 50 Hz: 300 Watt
For aquariums of about.: 600L
For aquariums up to approx.: 1000L
Height: 496mm
Freshwater: Yes
Seawater: Yes

Advantages of the EHEIM control heater thermocontrol-e

  • Precise temperature adjustment from 20 to 32 °C
  • No readjustment necessary
  • Control accuracy ± 0.5 °C
  • The heat is kept constant
  • Control lamp indicates the heating function (red: heating up; green: temperature reached)
  • Fully submersible (waterproof)
  • With dry-running protection (Thermo Safety Control)
  • Glass coating increases the heating surface and ensures optimum, even heat output
  • Convenient cable length approx. 170 cm
  • Including double suction holder
  • Suitable for fresh and marine water
  • Highest safety and reliability - 3 years warranty
  • Made in Germany

Precision, comfort, quality and safety "Made in Germany".

As you know, fish from tropical and subtropical waters need a certain constant water temperature. Before the engineer Eugen Jäger invented the aquarium heater decades ago, there was no really satisfactory solution to produce the appropriate water temperature. They dealt with complicated and sometimes curious methods. Some put the aquarium in the sun or by the heater or stove.
The EHEIM thermocontrol aquarium control heater is a further development of the legendary heating element and thermocontrol-e is the latest electronically controlled variant.
The temperature can be precisely adjusted from 20 to 32 °C. The control accuracy is ± 0.5 °C.
The heat is kept constant. A control lamp indicates the heating function.
The heater is absolutely waterproof, can be fully immersed, has dry run protection (Thermo Safety Control) and is suitable for fresh and marine water. One of the most important innovations is the glass coating:
• It increases the heating surface,
• compresses the heat, ensures optimum, uniform heat output and
• forms a heat shield (the aquarium inhabitants do not mind touching it).

The coating is made of special laboratory glass. This was created for research purposes. It is, therefore, free of pollutants that could be released into the water. Chemical and biological substances do not attack them. There are no cracks and hairline cracks through which condensation water could pass. It is impact resistant. And even extreme temperature fluctuations, such as those that may occur during water changes, do not affect this glass.

*Pet Essentials Warehouse range

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. 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
SKU: 1578188977

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4.8 ★★★★★
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Gene and Karen
Alexandria, US
★★★★★ 3
Not for all surfaces.
Size: 11.5 Wide, Color: Black Leather/Optic White
The sneakers look great and are comfortable on flat, smooth surfaces. Warning: The sole is very flexible and not well cushioned so a walk on rough or uneven surfaces can become uncomfortable quickly. Just understand the limitations.
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Reviewed in the United States on June 1, 2026
E
Verified Purchase
Eduardo Renta
Massapequa, US
★★★★★ 5
⭐⭐⭐⭐⭐ Clean Look, Comfortable Ride
Size: 11.5 Wide, Color: Woodbury Handstain
The Cole Haan Men’s GrandPro Tennis sneakers are a perfect mix of laid-back and polished — the kind of shoe you can wear everywhere without thinking too hard about it. Right off the bat, the design is subtle but refined. They’re minimalist enough to pair with jeans and a hoodie, but they also work with chinos and a button-down for a more put-together look. The “tennis” aesthetic keeps it classic without feeling like you’re wearing athletic shoes. Comfort is where these really shine. They’re lightweight and cushioned in all the right places, so long walks, errands, or standing around at events don’t end with sore feet. There’s no stiff break-in period — they feel good from the first wear. The sole has just the right balance of support and flexibility, which makes them easy to wear all day. The materials feel good too — soft, sturdy, and not flimsy. They hold up well after repeated wear and still look fresh even after a few outings. They don’t crease or scuff up excessively, which is always nice. If I had to point out a downside, it’s that they’re not performance sneakers for athletics — but that’s not what they’re meant to be. They’re lifestyle shoes that look great and feel great for everyday wear. Overall, a solid go-to sneaker that elevates casual outfits and keeps comfort front and center. Easy recommend if you want versatile kicks that stay stylish without being loud. I was able to pick up this particular pair here on Amazon for 50 bucks, 56 total with everything and honestly I’m still scratching my head in that deal. I mean my New Balance were 70 bucks or something like that. These are brown leather, sophisticated and comfortable, just amazing shoes. I get compliments all the time.
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Reviewed in the United States on February 16, 2026
D
Verified Purchase
Deborah Barnum
Lowell, US
★★★★★ 5
Quality and Comfort
Size: 12, Color: White
My husband is a Cole Haan shoe person and what we love mostly is the comfort and quality and style.
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Reviewed in the United States on May 13, 2026
S
Verified Purchase
superbrain
Boise, US
★★★★★ 5
Size seems spot on shoe is beautiful
Size: 12, Color: White
These are beautiful shoes. A great cross between the ubiquitous flat as a board shoes like vans and tennis shoes. More comfortable than the super flat shoes and more formal than sneakers. Very soft leather. Not much arch support and I don't know if an insert would fit well. I am between an 11.5 and 12 in most brands (actual foot length from heel to tip of big toe is 11 and 1/8 inches). These fit perfectly in a 12 with room for comfort. An 11.5 probably would fit but snugly. I do not agree that they should be sized down at least based on my experience. If you can get these for under eighty dollars like I did they are well worth it. I'll be wearing them all summer.
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Reviewed in the United States on May 15, 2021
I
Verified Purchase
It's cool.
Grantham, US
★★★★★ 4
Weightless, well made. But there are problems with size
Size: 8.5, Color: White
I bought it for a teenager, for size 81/2. This, according to the dimensions on the page, is 25.9 centimeters. They came, the size was indicated correctly, but they are large for the child. Very large. They fit me, size 10. The child is disappointed. Well made, look neat on the foot. Almost weightless But I can't give the maximum rating. I wish the seller to deal with the size grid.
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Reviewed in the United States on April 15, 2026

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