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Aquarium Heaters: Hydor Theo Submersible Heaters
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Hydor Theo 50 Watt Aquarium Heater Hydor Theo 50 Watt Aquarium Heater

Hydor Theo 50 Watt Aquarium Heater is a fully submersible, shatter-proof  glass aquarium heater.

  • Maximum security: THEO is shock resistant thanks to the PTC heating element and the shatterproof glass tube
  • Free positioning in aquarium with supplied suction cups
  • Self-limiting: the patented PTC heating system guarantees operation in complete safety because in case of dry running there is no danger for damage
  • Temperature range: 70-94 degrees Fahrenheit

Our Price: $19.99
Sale Price: $17.49
You save $2.50!
In Stock
Hydor Theo 100 Watt Aquarium Heater Hydor Theo 100 Watt Aquarium Heater

Hydor Theo 100 Watt Aquarium Heater is a fully submersible, shatter-proof  glass aquarium heater.

  • Maximum security: THEO is shock resistant thanks to the PTC heating element and the shatterproof glass tube
  • Free positioning in aquarium with supplied suction cups
  • Self-limiting: the patented PTC heating system guarantees operation in complete safety because in case of dry running there is no danger for damage
  • Temperature range: 70-94 degrees Fahrenheit

Our Price: $21.29
Sale Price: $18.19
You save $3.10!
In Stock
Hydor Theo 200 Watt Aquarium Heater Hydor Theo 200 Watt Aquarium Heater

Hydor Theo 200 Watt Aquarium Heater is a fully submersible, shatter-proof  glass aquarium heater.

  • Maximum security: THEO is shock resistant thanks to the PTC heating element and the shatterproof glass tube
  • Free positioning in aquarium with supplied suction cups
  • Self-limiting: the patented PTC heating system guarantees operation in complete safety because in case of dry running there is no danger for damage
  • Temperature range: 70-94 degrees Fahrenheit

Our Price: $24.99
Sale Price: $19.79
You save $5.20!
In Stock
Hydor Theo 300 Watt Aquarium Heater Hydor Theo 300 Watt Aquarium Heater

Hydor Theo 300 Watt Aquarium Heater is a fully submersible, shatter-proof  glass aquarium heater.

  • Maximum security: THEO is shock resistant thanks to the PTC heating element and the shatterproof glass tube
  • Free positioning in aquarium with supplied suction cups
  • Self-limiting: the patented PTC heating system guarantees operation in complete safety because in case of dry running there is no danger for damage
  • Temperature range: 70-94 degrees Fahrenheit

Our Price: $26.89
Sale Price: $22.89
You save $4.00!
In Stock
Hydor 400 Watt Theo Aquarium Heater Hydor 400 Watt Theo Aquarium Heater

Hydor Theo 400 Watt Aquarium Heater is a fully submersible, shatter-proof  glass aquarium heater.

  • Maximum security: THEO is shock resistant thanks to the PTC heating element and the shatterproof glass tube
  • Free positioning in aquarium with supplied suction cups
  • Self-limiting: the patented PTC heating system guarantees operation in complete safety because in case of dry running there is no danger for damage

Our Price: $27.49
Sale Price: $24.19
You save $3.30!
In Stock
JBJ True Temp Heater Holder JBJ True Temp Heater Holder

The JBJ True Temp Heater Holder is a replacement heater holder for the JBJ True Temp Titanium Heating Systems. It also can be used as a safety guard and magnet holder for heaters from other manufacturers. The holder can handle heaters up to 16" in length and 1" diameter. This will accommodate the Hydor Theo, Ebo Jager and Eheim aquarium heaters. The heater holder comes in two sections and you can just use the 9" section for shorter heaters. The safety guard will prevent against heater breakage caused by large, aggressive fish. NOTE: If you're buying a JBJ True Temp Heater, this Heater Holder already comes with it.

Our Price: $28.99
In Stock