Deep Blue Professional Heat Stik Sub Heater for Aquarium Mini 15-watt

Deep Blue Professional Heat Stik Sub Heater for Aquarium Mini 15-watt

Deep Blue Professional Heat Stik Mini Submersible Heater 15W Fully submersible, place anywhere in your aquarium. Slim, compact footprint conceals easily behind ornaments & decorations. Ideal for desktop systems. Preprogrammed, no adjustments needed.... more

$9.99

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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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Mini-Therm Heater, 5 watt, New 10Watt MIniTherm Heater Submersible for Electronic 5Watt Free MiniTherm Wave Heaters S Aquarium 5 Sh Decoria Cube .., By Cobalt Aquatics Ship from US

Mini-Therm Heater, 5 watt, New 10Watt MIniTherm Heater Submersible for Electronic 5Watt Free MiniTherm Wave Heaters S Aquarium 5 Sh Decoria Cube .., By Cobalt Aquatics Ship from US

Fully SubmersibleCompact for small aquariumRound DesignShatterproof Design more

$15.65

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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

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(275,000+)
Tetra HT30 Submersible Heater 100 Watt (1030 Gal)

Tetra HT30 Submersible Heater 100 Watt (1030 Gal)

HT Submersible Heater (100 Watt)The new Tetra HT10 and HT30 submersible heaters for aquariums ranging from 2 to 30 gallons are easy to use. The electronic thermostat automatically adjusts heat output to keep the water at a constant 78F. All you have to... more

$19.86 $12.29

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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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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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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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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+)
Tetra Submersible Aquarium Heater, 50-Watts

Tetra Submersible Aquarium Heater, 50-Watts

Keep your delicate underwater family members comfortable with the Tetra Submersible Aquarium Heater. This easy-use heater helps maintain optimal water temperature at all times. Its electric thermostat keeps water at a consistent 78 degrees Farhenheit,... more

$20.66 $9.99

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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+)
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 Pro Heater 150 Watt

Aqueon Pro Heater 150 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

$35.99

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Penn Plax 8 in. 50 Watt Heater for 15 gal. Aquarium - CH875

Penn Plax 8 in. 50 Watt Heater for 15 gal. Aquarium - CH875

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 $17.93

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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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Mini-Therm Submersible Aquarium Heater 31021

Mini-Therm Submersible Aquarium Heater 31021

Compact heater for small marine, fresh water, reef and terrarium for tanks up to 2.4 gallons. Fully submersible Shatterproof Constant "on" design more

$12.30

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50W 100W Aquarium Mini Submersible Fish Tank Adjustable Water Heater (Water heater)

50W 100W Aquarium Mini Submersible Fish Tank Adjustable Water Heater (Water heater)

Easy to use, Safe,Precise. Fully submersible heaters work in any position (horizontal or vertical) to provide optimum aquarium water temperature. Safe and reliable in both fresh and salt water aquariums! Temperature range between 65F and 93F. Sensitive... more

$17.79

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Overstock.com

(675,000+)
300W Aquarium Mini Submersible Fish Tank Adjustable Water Heater (300W), Clear

300W Aquarium Mini Submersible Fish Tank Adjustable Water Heater (300W), Clear

Easy to use, Safe,Precise. Fully submersible heaters work in any position (horizontal or vertical) to provide optimum aquarium water temperature. Safe and reliable in both fresh and salt water aquariums!. Temperature range between 65F and 93F.... more

$14.99

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Overstock.com

(675,000+)
100W Aquarium Mini Submersible Fish Tank Adjustable Water Heater (100W), Black

100W Aquarium Mini Submersible Fish Tank Adjustable Water Heater (100W), Black

Easy to use, Safe,Precise. Fully submersible heaters work in any position (horizontal or vertical) to provide optimum aquarium water temperature. Safe and reliable in both fresh and salt water aquariums!. Temperature range between 65F and 93F.... more

$13.49

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Overstock.com

(675,000+)
Aqueon Mini Heater 100106193/100106194

Aqueon Mini Heater 100106193/100106194

Fully submersible. Shatterproof. Features thermal safety shut-off. Always set to the ideal temperature. more

$16.41

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Bettatherm Mini Size Betta Bowl Heater BH-10

Bettatherm Mini Size Betta Bowl Heater BH-10

Convenient small round size heater that fits most fish or betta bowls Completely submersible Can be used for glass or acrylic tanks and bowls Increases water temperature 5-10 degrees over ambient room temperature more

$14.40

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Aqueon Mini Heater - 10W - Up to 5 gal.

Aqueon Mini Heater - 10W - Up to 5 gal.

The Aqueon Mini Heater is ideal for small aquariums; up to 5 gallons in size. Fully submersible and shatter proof design keeps your fish safe. Thermal safety fuse shuts off the heater when it dries out or in any other event it might overheat. When used... more

$14.99

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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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Deep Blue Heat Stik Mini Submersible Heater 15 Watt

Deep Blue Heat Stik Mini Submersible Heater 15 Watt

Fully submersible, place anywhere in your aquarium. Slim, compact footprint conceals easily behind ornaments & decorations. Ideal for desktop systems. Preprogrammed, no adjustments needed. Freshwater & marine aquaria safe. For up to 5 gallon tanks and... more

$16.97

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'Aqueon Submersible Aquarium Heaters (10'' Length; For 15-40 gallon Aquariums; 100 Watts)', As Shown

'Aqueon Submersible Aquarium Heaters (10'' Length; For 15-40 gallon Aquariums; 100 Watts)', As Shown

With Aqueon, it's all about the fish. Aqueon makes a variety of aquarium solutions to sustain healthy and happy fish and aquatic life. Keep your tropical fish warm with the Aqueon Glass Adjustable Submersible Aquarium Heater. Constructed from thermal... more

$19.94

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Aqueon Aqueon Submersible Aquarium Heaters: 150 Watts - (3.7 L x 1.5 W x 15 H) #6102 - Aquarium Heat

Aqueon Aqueon Submersible Aquarium Heaters: 150 Watts - (3.7 L x 1.5 W x 15 H) #6102 - Aquarium Heat

Aqueon Aqueon Submersible Aquarium Heaters: 150 Watts - (3.7 L x 1.5 W x 15 H) #6102 Aqueon Submersible Aquarium Heater is a completely submersible aquarium heater with precise temperature setting. Featuring a shatter resistant construction, this... more

$22.50

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Deep Blue Bettastik Mini Submersible Betta Heater 75 Watt

Deep Blue Bettastik Mini Submersible Betta Heater 75 Watt

The perfect mini heater for betta bowls. Fully submersible, place anywhere in your aquarium. Slim, compact footprint conceals easily behind ornaments & decorations. Ideal for desktop systems. Preprogrammed, no adjustments needed. Freshwater & marine... more

$16.97

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Deep Blue Heat Stik Mini Submersible Heater 60 Watt

Deep Blue Heat Stik Mini Submersible Heater 60 Watt

60W Mini Submersible Heater Features: Fully submersible, place anywhere in your aquarium. Slim, compact footprint conceals easily behind ornaments & decorations. Ideal for desktop systems. Preprogrammed, no adjustments needed. Freshwater & marine... more

$16.97

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Aqueon Aqueon Submersible Aquarium Heaters: 100 Watts - (3.8 L x 1.5 W x 12.3 H) #6101 - Aquarium He

Aqueon Aqueon Submersible Aquarium Heaters: 100 Watts - (3.8 L x 1.5 W x 12.3 H) #6101 - Aquarium He

Aqueon Aqueon Submersible Aquarium Heaters: 100 Watts - (3.8 L x 1.5 W x 12.3 H) #6101 Aqueon Submersible Aquarium Heater is a completely submersible aquarium heater with precise temperature setting. Featuring a shatter resistant construction, this... more

$21.60

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Hydor Hydor Submersible Aquarium Heater: 400 Watt - 15.5 Long - (80 - 105 Gallons) #T11502 - Aquari

Hydor Hydor Submersible Aquarium Heater: 400 Watt - 15.5 Long - (80 - 105 Gallons) #T11502 - Aquari

Hydor Hydor Submersible Aquarium Heater: 400 Watt - 15.5 Long - (80 - 105 Gallons) #T11502 The Hydor Aquarium Heater is a submersible heater made with the exclusive PTC (Positive Thermal Coefficient) technology. This Hydor aquarium heater provides no... more

$27.12

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Tetra Heater Submersible Heater - 100-watt

Tetra Heater Submersible Heater - 100-watt

Tetra Submersible Heater The Tetra Submersible Heater features an electronic thermostat that automatically adjusts heat output to keep water at a constant 78 degrees Fahrenheit. An indicator light lets you know when the heater is on and heating your... more

$13.29

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Tetra Heater Submersible Heater - 200-watt

Tetra Heater Submersible Heater - 200-watt

Tetra Submersible Heater The Tetra Submersible Heater features an electronic thermostat that automatically adjusts heat output to keep water at a constant 78 degrees Fahrenheit. An indicator light lets you know when the heater is on and heating your... more

$20.99

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Fluval M 50-Watt Submersible Heater

Fluval M 50-Watt Submersible Heater

The Fluval M Submersible Aquarium Heater's quality manufacturing utilizes superior components and construction. The Fluval M 50 Watts Electronic Heater is ideal for use in aquariums up to 15 gallons and has a temperature range of 66-86 degrees... Size:... more

$23.98

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Cobalt Aquatics Electric Neo-Therm Submersible Aquarium Heater, 100 Watt, Black

Cobalt Aquatics Electric Neo-Therm Submersible Aquarium Heater, 100 Watt, Black

The all new Cobalt Aquatics NEO-Therm electronic heaters feature a modern, super flat design with an easy to set one touch control system. The advanced electronic thermostat is accurate to 0.5F and includes a LED that displays both the Set Temp and... more

$43.80

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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+)
Penn Plax Cascade Heat Preset Submersible Heater - 25 Watt/10 Gal

Penn Plax Cascade Heat Preset Submersible Heater - 25 Watt/10 Gal

Penn Plax is a name that stands for Quality, Innovation and Integrity- In the Pet Industry for over 50 years- Experience a great line of Pet Products in all categories!- Penn-Plax is committed to creating and manufacturing innovative pet products for... more

$15.27 $12.41

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Penn Plax Cascade Heat Preset Submersible Heater - 200 Watt/55 Gal

Penn Plax Cascade Heat Preset Submersible Heater - 200 Watt/55 Gal

Fully submersible aquarium heater Simple to use Automatically maintains desired water temperature Hyper accurate to within 1? more

$35.99 $15.65

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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+)

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