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Hydor Theo Aquarium Heater, 25 Watts

Hydor Theo Aquarium Heater, 25 Watts

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 the water in... more

$66.63 $17.24

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Hydor USA Eth In-Line Heater, 300 watt

Hydor USA Eth In-Line Heater, 300 watt

Features: First and unique external heater for aquariums with the exclusive PTC (Positive Thermal Coefficient) technology The self-limiting PTC heating element guarantees maximum safety against any risk of overheating The exclusive technology and the... more

$71.91 $54.97

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Hydor Usa Inc. Theo 400 Watt Submersible Shatterproof Heater 15.5" Hy00320

Hydor Usa Inc. Theo 400 Watt Submersible Shatterproof Heater 15.5" Hy00320

400W submersible aquarium heater. UL listed. Safe and reliable. Made from specially enginereed shatterproof glass. Temperature controlled and maintained by precise micro-switch. For aquariums 80-105 gallons.Length - 15.5"Part #: AHY00320Item Name: Theo... more

$29.95

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Hydor ETH External Thermal Heater - In Line Heater ETH 300 - 300 Watt - (5/8" ID - 53-80 Gallon Tanks)

Hydor ETH External Thermal Heater - In Line Heater ETH 300 - 300 Watt - (5/8" ID - 53-80 Gallon Tanks)

Hydor ETH External Thermal Heater - In Line Heater ETH 300 - 300 Watt - (5/8" ID - 53-80 Gallon Tanks) more

$57.52

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Theo Heater 150 watt

Theo Heater 150 watt

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... more

$23.99

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(275,000+)
Hydor Slim Heater 7.5W (Mfg# T20201)

Hydor Slim Heater 7.5W (Mfg# T20201)

Easily warm your miniature aquarium to a comfortable, hospitable temperature that helps keep your fish thriving! Fully submersible Hydor Slim Aquarium Heater feature plug-and-go design, shock-proof construction, and a sleek shape that blends in with... more

$9.99

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(275,000+)
ETH In-Line Heater 200 watt, 5/8"

ETH In-Line Heater 200 watt, 5/8"

Prevents temperature variations caused by poor water circulation Precise, accurate temperature setting Indicator light shows when unit is "ON" Double insulated and double sealed The first compact aquarium heater that operates externally, saving... more

$52.99

FREE shipping

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(275,000+)
Hydor Koralia 4 UL 1400 GPH (12 watts)

Hydor Koralia 4 UL 1400 GPH (12 watts)

Hydor Koralia 4 UL 1200 GPH (12 watts) Innovative circulation pump for aquariums. The exclusive Hydor design and technology guarantee a continuous and powerful water flow which can be directed freely thanks to the special sphere shaped connection to... more

$69.99 $59.99

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In Line Heater Eth 300W 53-80G

In Line Heater Eth 300W 53-80G

Easy to connect to any canister filter, the ETH External In-Line Heater is suitable for both freshwater and marine aquariums. Installs vertically on the return line of a canister filter or sump, allowing for better heat distribution as water returns to... more

$104.95

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Aqueon Pro Heater 100 Watt

Aqueon Pro Heater 100 Watt

Pro Heaters are precision calibrated aquarium heaters that are full submersible • Power Monitor light (Green �\" Heating ; Red �\" Aquarium at set temperature) • Shatterproof and Nearly Indestructible • Electronic Thermostat for Safety and Accurate... more

$34.99

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Aqueon Pro Heater 250 Watt

Aqueon Pro Heater 250 Watt

Pro Heaters are precision calibrated aquarium heaters that are full submersible • Power Monitor light (Green �\" Heating ; Red �\" Aquarium at set temperature) • Shatterproof and Nearly Indestructible • Electronic Thermostat for Safety and Accurate... more

$39.99

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Aqueon Submersible Aquarium Heaters (300 Watt)

Aqueon Submersible Aquarium Heaters (300 Watt)

Aqueon Pro Submersible Aquarium Heater works to reliably regulate the temperature in your fish tank with precision. This heater is appropriate for both freshwater and saltwater tanks and can be completely submerged in the water. The advanced technology... more

$41.99 $29.99

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Penn Plax 12 in. 300 Watt Heater for 75/125 gal. Aquarium - CH12300

Penn Plax 12 in. 300 Watt Heater for 75/125 gal. Aquarium - CH12300

Automatically sets and maintains your desired temperature. Accurate to 1 degree. Fully submersible. Can be used for fresh and salt water aquariums. more

$49.99 $21.12

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Tetra Pond 100 Watt Submersible Heater - 0861-1220

Tetra Pond 100 Watt Submersible Heater - 0861-1220

Dimensions: 3.5W x 1.63D x 8.25H in.. Plastic and metal construction. Adjustable between 72 degrees and 85 degrees F. Heater indicator light. For aquariums 10 to 30 gallons. This Tetra Pond 100 Watt Submersible Heater is easy to conceal and works in... more

$23.20 $17.98

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Penn Plax 7 in. 50 Watt Heater for 10 gal. Aquarium - CH850

Penn Plax 7 in. 50 Watt Heater for 10 gal. Aquarium - CH850

Automatically sets and maintains your desired temperature. Accurate to 1 degree. Fully submersible. Can be used for fresh and salt water aquariums. more

$38.99 $18.90

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Fluval M300 Submersible Glass Aquarium Heater (300 watts)

Fluval M300 Submersible Glass Aquarium Heater (300 watts)

The Fluval "M" 300 watt submersible heater is quality manufactured in Europe using superior components and construction. This sleek, compact Fluval heater can be trusted for exceptional performance and unsurpassed reliability. Unique only to the Fluval... more

$33.79 $25.99

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Farm Innovators 1000 Watt Ice-N-Easy Stock Tank Water Heater (Water Heater)

Farm Innovators 1000 Watt Ice-N-Easy Stock Tank Water Heater (Water Heater)

7.75 L x 4.5 W x 7.75 H Assembly: Assembled more

$45.99

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Overstock.com

(675,000+)
K&H Pet Products Ultimate Pail Heater with Cord Clip 250 Watt , Grey metal

K&H Pet Products Ultimate Pail Heater with Cord Clip 250 Watt , Grey metal

Ideal for any size bucket, this 250 watt de-icer comes with a clip for convenience. Keep your animals in constant supply of fresh water this winter. Submersible Safe for all buckets Full cage included Brand: K&H Pet Products Model: KH8400 Color: Red... more

$35.49

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Overstock.com

(675,000+)
Tetra HT10 Submersible Heater (Heater Ht10 Submers)

Tetra HT10 Submersible Heater (Heater Ht10 Submers)

Submersible heater No adjustment required Easy to conceal Up to 10 gallons 2 year warranty50 watts Type: Fish Food more

$28.99

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Overstock.com

(675,000+)
Titanium Aquarium Heater TH-1000

Titanium Aquarium Heater TH-1000

1000 watts Amperage: 9.0a Tank capacity: up to 270-350 gallons more

$93.88

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Slim Heater for Bettas and Bowls - 7.5W - Up to 5 gal.

Slim Heater for Bettas and Bowls - 7.5W - Up to 5 gal.

A 7.5 watt Slim Heater is ideal for your betta or small fish bowl 2 to 5 gallons in size. Bettas thrive in warm water; so it?s best to keep a small heater in your bowl. Shock proof heater is shaped to fit easily into a round fish bowl; above or below... more

$15.99

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Slim Heater for Mini Aquariums - 5 to 10 gal. - 15W

Slim Heater for Mini Aquariums - 5 to 10 gal. - 15W

A 15 watt Slim Heater is ideal for your mini or micro tropical aquarium 5 to 10 gallons in size. Shock proof heater is uniquely shaped to fit easily into a variety of tanks; above or below the substrate. Perfect for glass; acrylic; or plastic... more

$18.99

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Slim Heater for Mini Aquariums - 7.5W - Up to 5 gal.

Slim Heater for Mini Aquariums - 7.5W - Up to 5 gal.

A 7.5 watt Slim Heater is ideal for your mini or micro tropical aquarium up to 5 gallons in size. Shock proof heater is uniquely shaped to fit easily into a variety of tanks; above or below the substrate. Perfect for glass; acrylic; or plastic... more

$16.49

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"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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Hydor Theo Heater 200 watt

Hydor Theo Heater 200 watt

* 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... more

$26.99

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Hydor Theo Heater 100 watt

Hydor Theo Heater 100 watt

* 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... more

$22.00

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Hydor Theo Heater 25 watt

Hydor Theo Heater 25 watt

* 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... more

$13.58

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Slim Heater for Bettas, Bowls and Aquariums 7.5 Watt, Oval, up to 5 gal, USA, Brand Hydor

Slim Heater for Bettas, Bowls and Aquariums 7.5 Watt, Oval, up to 5 gal, USA, Brand Hydor

7-1/2-watt Slim Heater helps guarantee your fish a healthy life by promoting the ideal water temperature. Specially designed with the innovative PTC (Positive Thermal Coefficient) element to heat the temperature of your aquarium or terrarium an average... more

$19.79

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Theo Heater 25 watt

Theo Heater 25 watt

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... more

$17.99

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(275,000+)
Theo Heater 100 watt

Theo Heater 100 watt

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... more

$20.99

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(275,000+)
ETH In-Line Heater 200 watt, 1/2"

ETH In-Line Heater 200 watt, 1/2"

Prevents temperature variations caused by poor water circulation Precise, accurate temperature setting Indicator light shows when unit is "ON" Double insulated and double sealed The first compact aquarium heater that operates externally, saving... more

$52.99

FREE shipping

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(275,000+)
Theo Heater 50 watt

Theo Heater 50 watt

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... more

$19.99

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(275,000+)
Hydor Slim Heater 15W (Mfg# T203201)

Hydor Slim Heater 15W (Mfg# T203201)

Easily warm your miniature aquarium to a comfortable, hospitable temperature that helps keep your fish thriving! Fully submersible Hydor Slim Aquarium Heater feature plug-and-go design, shock-proof construction, and a sleek shape that blends in with... more

$10.99

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(275,000+)
Hydor Koralia Nano 565

Hydor Koralia Nano 565

Compact water circulation pumps ideal for nano aquariums Nano pumps boast small foot print and higher flow rate Energy-efficient pumps operate on just three and half watts Enhance vital water movement without sacrificing valuable aquarium space.... more

$34.99

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(275,000+)
Hydor Koralia Nano 425

Hydor Koralia Nano 425

Compact water circulation pumps ideal for nano aquariums Nano pumps boast small foot print and higher flow rate Energy-efficient pumps operate on just three and half watts Enhance vital water movement without sacrificing valuable aquarium space.... more

$31.99

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(275,000+)
Fluval E Series Heaters 200 watt

Fluval E Series Heaters 200 watt

Innovative electronic heater for fresh and saltwater aquariums Advanced aquarium heater detects abnormal or non-optimal conditions Heater microprocessor monitors and displays aquarium water temperature The most technologically advanced submersible... more

$53.99

FREE shipping

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(275,000+)
ETH In-Line Heater 300 watt, 5/8"

ETH In-Line Heater 300 watt, 5/8"

Prevents temperature variations caused by poor water circulation Precise, accurate temperature setting Indicator light shows when unit is "ON" Double insulated and double sealed The first compact aquarium heater that operates externally, saving... more

$54.99

FREE shipping

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(275,000+)
Theo Heater 400 watt

Theo Heater 400 watt

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... more

$29.99

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(275,000+)
Theo Heater 200 watt

Theo Heater 200 watt

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... more

$24.99

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(275,000+)

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