Aquarium Heaters: Hydor Theo Heater
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Hydor Theo Heater

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Hydor Theo Heater
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* Patented heating element automatically turns off if water level declines
* Easy temperature adjustment - knob clicks at every degree change
* Submersible heater with shatterproof glass resists breakage

Patented heating film and special shatterproof glass make this submersible heater virtually unbreakable. Theo switches itself off if the heater is not fully submersed - avoiding overheating and damage. UL-listed Precise temperature knob clicks in 1°F increments, and an indicator lamp lets you know when it's on. Suction-cup clamps included. 5-1/2 ft. cord. UL-Listed.

Watts Length Aquarium Size
25 7" 2-7 gallons
50 7" 5-14 gallons
100 9" 14-26 gallons
150 12" 23-40 gallons
200 12" 26-53 gallons
300 15-1/2" 53-80 gallons
400 15-1/2" 80-105 gallons

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Please note: Return of electrical equipment to Drs. Foster & Smith for exchange or refund is limited to 60 days from the date of purchase. Beyond 60 days, please contact the manufacturer for repair or replacement as covered by the manufacturer's warranty.

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