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    Eheim Jager TruTemp Fully Submersible UL Approved Heater 9 Inch 50 watts

    Eheim Jager TruTemp Fully Submersible UL Approved Heater 9 Inch 50 watts

    Fully Submersible, Fully Waterproof and UL Certified Heater suitable for both fresh and salt water aquarium set ups featuring TrueTemp technology TruTemp dial with readjustment ring allows the user to calibrate the heater for a precise temperature... more

    $23.99

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    Eheim Jager TruTemp Fully Submersible UL Approved Heater 12 Inch 100 watts

    Eheim Jager TruTemp Fully Submersible UL Approved Heater 12 Inch 100 watts

    Fully Submersible, Fully Waterproof and UL Certified Heater suitable for both fresh and salt water aquarium set ups featuring TrueTemp technology TruTemp dial with readjustment ring allows the user to calibrate the heater for a precise temperature... more

    $27.99

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    Eheim Jager TruTemp Fully Submersible UL Approved Heater 13 Inch 150 watts

    Eheim Jager TruTemp Fully Submersible UL Approved Heater 13 Inch 150 watts

    Fully Submersible, Fully Waterproof and UL Certified Heater suitable for both fresh and salt water aquarium set ups featuring TrueTemp technology TruTemp dial with readjustment ring allows the user to calibrate the heater for a precise temperature... more

    $28.99

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    Hydor 50W Submersible Aquarium Heater - Original Theo

    Hydor 50W Submersible Aquarium Heater - Original Theo

    Theo Heater. New aquarium heater functioning with the exclusive PTC technology means that this heater will not break or damage when run out of the tank. Theo aquarium heater has all the necessary feature for safe and precise temperature maintenance of... more

    $15.53

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    Hydor 150W Submersible Aquarium Heater - Original Theo

    Hydor 150W Submersible Aquarium Heater - Original Theo

    Theo Heater. New aquarium heater functioning with the exclusive PTC technology means that this heater will not break or damage when run out of the tank. Theo aquarium heater has all the necessary feature for safe and precise temperature maintenance of... more

    $22.19

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    Hydor Submersible Heater for Aquarium, 100-Watts

    Hydor Submersible Heater for Aquarium, 100-Watts

    Theo Heater. New aquarium heater functioning with the exclusive PTC technology means that this heater will not break or damage when run out of the tank. Theo aquarium heater has all the necessary feature for safe and precise temperature maintenance of... more

    $22.84

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    Theo 150 Watt Submersible Shatterproof Heater 8.9

    Theo 150 Watt Submersible Shatterproof Heater 8.9

    Hydor THEO (UL) Submersible Aquarium Heater - High Quality Fish Tank Water Heater and Aquarium Water Heater SelectionKeep your aquarium at the perfect temperature with the Hydor THEO (UL) Submersible Aquarium Heater. This sleek fish tank water heater... more

    $27.03

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    Rakuten.com Shopping

    (1,000,000+)
    Theo Submersible Aquarium Heater - Wattage: 300

    Theo Submersible Aquarium Heater - Wattage: 300

    HYY1028: Features: -Theo submersible aquarium heater.-Shatter resistant glass.-No damage if run dry.-Easy to read scale for precise temperature setting.-Safe if freshwater or saltwater aquariums.-UL approved. Specifications: -Available in 50, 100, 200,... more

    $39.99 $31.92

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    Rakuten.com Shopping

    (1,000,000+)
    Theo Submersible Aquarium Heater - Wattage: 200

    Theo Submersible Aquarium Heater - Wattage: 200

    HYY1028: Features: -Theo submersible aquarium heater.-Shatter resistant glass.-No damage if run dry.-Easy to read scale for precise temperature setting.-Safe if freshwater or saltwater aquariums.-UL approved. Specifications: -Available in 50, 100, 200,... more

    $37.32 $16.29

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    Rakuten.com Shopping

    (1,000,000+)
    Hydor Theo Aquarium Heaters 300 watt

    Hydor Theo Aquarium Heaters 300 watt

    New aquarium heater functioning with the exclusive PTC (Positive Thermal Coefficient) technology. The first shatter-proof fish tank heater thanks to the peculiar glass tube. Free positioning in the aquarium: vertical, horizontal and completely... more

    $26.99

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    PetSolutions

    (25,000+)
    Hydor Theo UL Aquarium Heater 50 watts

    Hydor Theo UL Aquarium Heater 50 watts

    Hydor Theo Super Safe, Shatter Proof Heating Control your aquarium's temperature safely and precisely with the THEO aquarium heater . The THEO is suitable for marine and tropical aquariums. The THEO heater can be positioned in any way: vertically,... more

    $17.49

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    Hydor THEO 200W (UL) Submersible Aquarium Heater, 200 Watts

    Hydor THEO 200W (UL) Submersible Aquarium Heater, 200 Watts

    Free Shipping on Orders Over $49!

    Hydor THEO (UL) Submersible Aquarium Heater - High Quality Fish Tank Water Heater and Aquarium Water Heater SelectionKeep your aquarium at the perfect temperature with the Hydor THEO (UL) Submersible Aquarium Heater. This sleek fish tank water heater... more

    $36.99 $33.33

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    petco.com

    (200,000+)
    Hydor THEO 150W (UL) Submersible Aquarium Heater, 150 Watts

    Hydor THEO 150W (UL) Submersible Aquarium Heater, 150 Watts

    Free Shipping on Orders Over $49!

    Hydor THEO (UL) Submersible Aquarium Heater - High Quality Fish Tank Water Heater and Aquarium Water Heater SelectionKeep your aquarium at the perfect temperature with the Hydor THEO (UL) Submersible Aquarium Heater. This sleek fish tank water heater... more

    $34.99 $31.57

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    petco.com

    (200,000+)
    Hydor THEO 25W (UL) Submersible Aquarium Heater, 25 Watts

    Hydor THEO 25W (UL) Submersible Aquarium Heater, 25 Watts

    Free Shipping on Orders Over $49!

    Hydor THEO (UL) Submersible Aquarium Heater - High Quality Fish Tank Water Heater and Aquarium Water Heater SelectionKeep your aquarium at the perfect temperature with the Hydor THEO (UL) Submersible Aquarium Heater. This sleek fish tank water heater... more

    $25.99 $24.53

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    petco.com

    (200,000+)
    25w 2-7gal. Fish Tank Aquarium Heater -hydor Theo Submersible Heater Ul Approved

    25w 2-7gal. Fish Tank Aquarium Heater -hydor Theo Submersible Heater Ul Approved

    Hobbie Bug TEL: (909)869-7325 ? ? Store http://myworld.ebay.com/hobbiebug Feedbacks Subscribe Aquarium Audio Culinary Home Refinement More to come... Store Newsletter Add My Store to your favorites and get notified on sales and receive promotional... more

    $20.95

    FREE shipping

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    50w Hydor Theo Submersible Ul Heater For Fresh/salt Water Aquarium Fish Tank

    50w Hydor Theo Submersible Ul Heater For Fresh/salt Water Aquarium Fish Tank

    Hobbie Bug TEL: (909)869-7325 ? ? Store http://myworld.ebay.com/hobbiebug Feedbacks Subscribe Aquarium Audio Culinary Home Refinement More to come... Store Newsletter Add My Store to your favorites and get notified on sales and receive promotional... more

    $22.99

    FREE shipping

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    Hydor Theo Heater 300 Watt Submersible

    Hydor Theo Heater 300 Watt Submersible

    Hydor THEO (UL) Submersible Aquarium Heater The Hydor Theo trade aquarium heater features PTC patented thermal technology which makes it among the safest aquarium heater lines on the market. The patented PTC heating system guarantees operation in... more

    $20.99

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    Hydor THEO UL Heater

    Hydor THEO UL Heater

    Hydor THEO UL Heater THEO aquarium heater has all the necessary features for safe and precise temperature maintenance of the water in your tank. The exclusive technology and the high quality of the components guarantee a long lasting product. 220/240V... more

    $18.99

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    Hydor THEO UL Heater

    Hydor THEO UL Heater

    Hydor THEO UL Heater THEO aquarium heater has all the necessary features for safe and precise temperature maintenance of the water in your tank. The exclusive technology and the high quality of the components guarantee a long lasting product. 220/240V... more

    $14.49

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    Hydor THEO UL Heater

    Hydor THEO UL Heater

    Hydor THEO UL Heater THEO aquarium heater has all the necessary features for safe and precise temperature maintenance of the water in your tank. The exclusive technology and the high quality of the components guarantee a long lasting product. 220/240V... more

    $12.69

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    Hydor THEO Heater 400 Watt

    Hydor THEO Heater 400 Watt

    Theo 400W For Aquariums 80 105 gallons New aquarium heater functioning with the exclusive PTC (Positive Thermal Coefficient) technology.The Hydor Theo heater line features PTC patented thermal technology which makes it among the safest aquarium heater... more

    $31.49

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    PetStore.com

    (2,500+)
    Hydor THEO Heater 100 Watt

    Hydor THEO Heater 100 Watt

    Keep your fish tanks and aquariums at the most comfortable temperature possible with the innovative Hydor Theo Heater from Pet Store. This revolutionary tank heater is made with an exclusive technology called Positive Thermal Coefficient, which makes... more

    $23.49

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    PetStore.com

    (2,500+)
    Hydor THEO Heater 150 Watt

    Hydor THEO Heater 150 Watt

    Increasing the temperature of your aquarium water to an appropriate degree for the comforts of your fish is made easy with the Hydor Theo Heater from Pet Store. This device comes with a diameter of nine inches, which is small and light enough to be... more

    $24.99

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    PetStore.com

    (2,500+)
    Hydor 200W Theo Aquarium Heater

    Hydor 200W Theo Aquarium Heater

    Theo reservoir & aquarium heaters have all the necessary features for safe and precise temperature maintenance of the water in your tank or reservoir. The exclusive technology and the high quality of the components guarantee a long lasting product.... more

    $43.53

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    Hydor Theo Aquarium Heater (200 watts)

    Hydor Theo Aquarium Heater (200 watts)

    Hydor Theo Aquarium Heater (200 watts) has all the necessary features for safe and precise temperature maintenance of the water in your tank. The exclusive technology and the high quality of the components guarantee a long lasting product.Aquarium... more

    $29.99 $16.29

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    Hydor 400W Theo Aquarium Heater

    Hydor 400W Theo Aquarium Heater

    Theo reservoir & aquarium heaters have all the necessary features for safe and precise temperature maintenance of the water in your tank or reservoir. The exclusive technology and the high quality of the components guarantee a long lasting product.... more

    $48.85

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    Hydor 300W Theo Aquarium Heater

    Hydor 300W Theo Aquarium Heater

    Theo reservoir & aquarium heaters have all the necessary features for safe and precise temperature maintenance of the water in your tank or reservoir. The exclusive technology and the high quality of the components guarantee a long lasting product.... more

    $46.19

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    Hydor THEO Heater 200 Watt

    Hydor THEO Heater 200 Watt

    Theo 200W For Aquariums 26 53 gallonsNew aquarium heater functioning with the exclusive PTC (Positive Thermal Coefficient) technology.The Hydor Theo heater line features PTC patented thermal technology which makes it among the safest aquarium heater... more

    $27.99

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    MarineDepot.com

    (25,000+)
    Hydor THEO Heater 150 Watt

    Hydor THEO Heater 150 Watt

    Theo 150W For Aquariums 23 40 gallons New aquarium heater functioning with the exclusive PTC (Positive Thermal Coefficient) technology.The Hydor Theo heater line features PTC patented thermal technology which makes it among the safest aquarium heater... more

    $24.99

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    MarineDepot.com

    (25,000+)
    Hydor THEO Heater 400 Watt

    Hydor THEO Heater 400 Watt

    Theo 400W For Aquariums 80 105 gallons New aquarium heater functioning with the exclusive PTC (Positive Thermal Coefficient) technology.The Hydor Theo heater line features PTC patented thermal technology which makes it among the safest aquarium heater... more

    $31.49

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    MarineDepot.com

    (25,000+)
    "Hydor Theo Heater 400 Watt for 80-105 Gallons (24/Cs)"

    "Hydor Theo Heater 400 Watt for 80-105 Gallons (24/Cs)"

    "Theo reservoir & aquarium heaters have all the necessary features for safe and precise temperature maintenance of the water in your tank or reservoir. The exclusive technology and the high quality of the components guarantee a long lasting product. " more

    $31.96

    FREE shipping

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    "Hydor Theo Heater 300 Watt for 53-80 Gallons (24/Cs)"

    "Hydor Theo Heater 300 Watt for 53-80 Gallons (24/Cs)"

    "Theo reservoir & aquarium heaters have all the necessary features for safe and precise temperature maintenance of the water in your tank or reservoir. The exclusive technology and the high quality of the components guarantee a long lasting product. " more

    $29.56

    FREE shipping

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    Theo Shatterproof Heater Clear 400 Watt (T11502)

    Theo Shatterproof Heater Clear 400 Watt (T11502)

    Theo Shatterproof Heater Clear 400 Watt(T11502)Features: Use In Aquariums Up To 200 Gal Completely Submersible.Ingredients: N/AColor: ClearSize: 400 Watt more

    $61.19

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    PetFenceUSA

    (250+)
    "Hydor Theo Heater 200 Watt for 26-53 Gallons (24/Cs)"

    "Hydor Theo Heater 200 Watt for 26-53 Gallons (24/Cs)"

    "Theo reservoir & aquarium heaters have all the necessary features for safe and precise temperature maintenance of the water in your tank or reservoir. The exclusive technology and the high quality of the components guarantee a long lasting product. " more

    $26.36

    FREE shipping

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    Theo Shatterproof Heater Clear 150 Watt (T11602)

    Theo Shatterproof Heater Clear 150 Watt (T11602)

    Theo Shatterproof Heater Clear 150 Watt(T11602)Features: Made For Aquariums Up To 40 Gal Completely Submersible, Safe And Shatterproof.Temperature Controlled And Maintained By A Highly Precise Micro-Switch, Ptc Element.Can Be Used Positioned Inside... more

    $49.49

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    PetFenceUSA

    (250+)
    Theo Shatterproof Heater Clear 400 Watt (T11502)

    Theo Shatterproof Heater Clear 400 Watt (T11502)

    Theo Shatterproof Heater Clear 400 Watt(T11502)Features: Use In Aquariums Up To 200 Gal Completely Submersible.Ingredients: N/AColor: ClearSize: 400 Watt more

    $73.43 $61.19

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    TSCPets

    (1,000+)
    Theo Shatterproof Heater Clear 150 Watt (T11602)

    Theo Shatterproof Heater Clear 150 Watt (T11602)

    Theo Shatterproof Heater Clear 150 Watt(T11602)Features: Made For Aquariums Up To 40 Gal Completely Submersible, Safe And Shatterproof.Temperature Controlled And Maintained By A Highly Precise Micro-Switch, Ptc Element.Can Be Used Positioned Inside... more

    $59.39 $49.49

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    TSCPets

    (1,000+)

    More information about Fish Supplies

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