The Hydor Theo UL Heater is equipped with PTC, meaning that it will not break if it's run while out of the tank. This is a common occurence with most aquarium heaters, so purchasing a an aquarium heater like the Theo UL heater is a great addition to your home or office aquarium! The Theo Heater is available in 25W, 50W, 100W, 150W, 200W, and 300W models so the Hydor Theo heater will fit any size aquarium.


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Hydor Theo Heater 300 watt INLINE HEATER FREE SHIP Hydor Theo Heater 300 watt INLINE HEATER FREE SHIP

Paypal   US $50.00

Sale Ends In: 14d 10h 40m

Hydor THEO Heater Anti Shock Shatterproof 200w 200 W Hydor THEO Heater Anti Shock Shatterproof 200w 200 W

Paypal   US $17.98

Sale Ends In: 27d 4h 48m

HYDOR THEO 400watt Submersible Heater HYDOR THEO 400watt Submersible Heater

Paypal   US $20.00

Sale Ends In: 23d 3h 56m

NEW Hydor THEO Submersible Aquarium Heater 200W UL NEW Hydor THEO Submersible Aquarium Heater 200W UL

Paypal   US $31.20

Sale Ends In: 29d 18h 31m

NEW Hydor THEO Submersible Aquarium Heater 150W UL NEW Hydor THEO Submersible Aquarium Heater 150W UL

Paypal   US $31.20

Sale Ends In: 29d 18h 49m

Hydor Theo Submersible Aquarium Heater Hydor Theo Submersible Aquarium Heater

Paypal   US $31.95

Sale Ends In: 29d 22h 41m

Hydor THEO Submersible Aquarium Heater 200W UL Hydor THEO Submersible Aquarium Heater 200W UL

Paypal   US $31.47

Sale Ends In: 26d 7h 14m

Hydor THEO Submersible Aquarium Heater 300W UL Hydor THEO Submersible Aquarium Heater 300W UL

Paypal   US $30.17

Sale Ends In: 26d 7h 15m

Hydor Theo 300w Aquarium Heater Hydor Theo 300w Aquarium Heater

Paypal   US $23.39

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Hydor THEO Submersible Aquarium Heater 25W UL Hydor THEO Submersible Aquarium Heater 25W UL

Paypal   US $26.78

Sale Ends In: 26d 7h 14m

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