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    Visi-Therm Deluxe Submersible Heater - 200W - Up to 55 gal.

    Visi-Therm Deluxe Submersible Heater - 200W - Up to 55 gal.

    Marineland's Visi-Therm Deluxe Heater is reliable and accurate. It maintains a temperature within one degree over or under the set temperature. The temperature is easy to set and it lets you know with a ''click'' sound for every adjustment. The... more

    $28.99

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    Visi-Therm Deluxe Submersible Heater - 75W - Up to 20 gal.

    Visi-Therm Deluxe Submersible Heater - 75W - Up to 20 gal.

    Marineland's Visi-Therm Deluxe Heater is reliable and accurate. It maintains a temperature within one degree of the set temperature. The temperature is easy to set and it lets you know with a ''click'' sound for every adjustment. The Visi-Therm Deluxe... more

    $24.99

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    Aquarium Systems Visi-Therm Heater Holder #VT000 - Aquarium Heater Parts

    Aquarium Systems Visi-Therm Heater Holder #VT000 - Aquarium Heater Parts

    Aquarium Systems Visi-Therm Heater Holder #VT000 Aquarium Systems Visi-Therm Heater Replacement Suction Cup & Clip. This kit contains 2 suction cups and 2 clips to mount your Visi-Therm heater securely on the aquarium wall. The black color is... more

    $3.80

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    "Visi-therm Heater, Size: 75 WATT, UPC# 047431904408, Mfg# ML90440, Free Shipping"

    "Visi-therm Heater, Size: 75 WATT, UPC# 047431904408, Mfg# ML90440, Free Shipping"

    "Visi-therm Heater Size: 75 WATT Miscellaneous AquariamHigh visibility temp setting with easy-to-view sliding scale tells the exact temperature setting.Click-set temperature dial to accurately set temperature to plus/minus 1 degree fahrenheit with... more

    $33.29

    FREE shipping

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    "Marineland Filtration-Visi-therm Heater 50 Watt"

    "Marineland Filtration-Visi-therm Heater 50 Watt"

    "VISI-THERM HEATERHigh visibility temp setting with easy-to-view sliding scale tells the exact temperature setting.Click-set temperature dial to accurately set temperature to plus/minus 1 degree fahrenheit with every click.Advanced mounting bracket,... more

    $25.99

    FREE shipping

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    "Visi-therm Heater, Size: 100 WATT, UPC# 047431904415, Mfg# ML90441, Free Shipping"

    "Visi-therm Heater, Size: 100 WATT, UPC# 047431904415, Mfg# ML90441, Free Shipping"

    "Visi-therm Heater Size: 100 WATT Miscellaneous AquariamHigh visibility temp setting with easy-to-view sliding scale tells the exact temperature setting.Click-set temperature dial to accurately set temperature to plus/minus 1 degree fahrenheit with... more

    $34.53

    FREE shipping

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    "Marineland Filtration-Visi-therm Heater 150 Watt"

    "Marineland Filtration-Visi-therm Heater 150 Watt"

    "VISI-THERM HEATERHigh visibility temp setting with easy-to-view sliding scale tells the exact temperature setting.Click-set temperature dial to accurately set temperature to plus/minus 1 degree fahrenheit with every click.Advanced mounting bracket,... more

    $28.99

    FREE shipping

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    Visi - therm Heater Holder

    Visi - therm Heater Holder

    Aquarium Systems - IO VISI-THERM HEATER HOLDER. Visi-Therm Heater Holder Fits all Visi-Therm Heaters Replacement Suction Cup & Clip more

    $2.74

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    Marineland Visi Therm 25 Watt

    Marineland Visi Therm 25 Watt

    * Submersible aquarium heater with advanced heating element * Redesigned heater boasts superior heat transfer and durability * Set and maintain ideal water temperature for aquarium inhabitants Set and maintain proper aquarium water temperature with... more

    $17.99

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    Marineland Visi Therm 100 Watt

    Marineland Visi Therm 100 Watt

    * Submersible aquarium heater with advanced heating element * Redesigned heater boasts superior heat transfer and durability * Set and maintain ideal water temperature for aquarium inhabitants Set and maintain proper aquarium water temperature with... more

    $18.99

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    Marineland Visi-Therm Submersible Aquarium Heater 50-Watt

    Marineland Visi-Therm Submersible Aquarium Heater 50-Watt

    Visi-Therm® Submersible Heaters from Marineland feature direct-set control, guaranteed durability, and certified accuracy to within one degree. Setting the temperature has never been easier. The easy click top dial now features calibrated marks to... more

    $20.99

    FREE shipping

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    Visi-Therm Deluxe Submersible Heater - 100W - Up to 29 gal.

    Visi-Therm Deluxe Submersible Heater - 100W - Up to 29 gal.

    Marineland's Visi-Therm Deluxe Heater is reliable and accurate. It maintains a temperature within one degree of the set temperature. The temperature is easy to set and it lets you know with a ''click'' sound for every adjustment. The Visi-Therm Deluxe... more

    $24.99

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    Visi-Therm Deluxe Submersible Heater - 400W - Up to 125 gal.

    Visi-Therm Deluxe Submersible Heater - 400W - Up to 125 gal.

    Marineland's Visi-Therm Deluxe Heater is reliable and accurate. It maintains a temperature within one degree of the set temperature. The temperature is easy to set and it lets you know with a ''click'' sound for every adjustment. The Visi-Therm Deluxe... more

    $54.99

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    Visi-Therm Deluxe Submersible Heater - 150W - Up to 40 gal.

    Visi-Therm Deluxe Submersible Heater - 150W - Up to 40 gal.

    Marineland's Visi-Therm Deluxe Heater is reliable and accurate. It maintains a temperature within one degree of the set temperature. The temperature is easy to set and it lets you know with a ''click'' sound for every adjustment. The Visi-Therm Deluxe... more

    $26.99

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    Visi-Therm Deluxe Submersible Heater - 25W - Up to 6 gal.

    Visi-Therm Deluxe Submersible Heater - 25W - Up to 6 gal.

    Marineland's Visi-Therm Deluxe Heater is reliable and accurate. It maintains a temperature within one degree of the set temperature. The temperature is easy to set and it lets you know with a ''click'' sound for every adjustment. The Visi-Therm Deluxe... more

    $24.99

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    Visi-Therm Deluxe Submersible Heater - 250W - Up to 70 gal.

    Visi-Therm Deluxe Submersible Heater - 250W - Up to 70 gal.

    Marineland's Visi-Therm Deluxe Heater is reliable and accurate. It maintains a temperature within one degree of the set temperature. The temperature is easy to set and it lets you know with a ''click'' sound for every adjustment. The Visi-Therm Deluxe... more

    $29.99

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    Marineland Visi-Therm Suction Cups with Brackets - 2 pk.

    Marineland Visi-Therm Suction Cups with Brackets - 2 pk.

    Suction cups with brackets are great for securing your Visi-Therm or other .75 in. diameter heater to your aquarium wall. Pull-tab makes repositioning your heater simple. 2 pk. more

    $4.99

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    "Visi-therm Heater, Size: 25 WATT, UPC# 047431904385, Mfg# ML90438, Free Shipping"

    "Visi-therm Heater, Size: 25 WATT, UPC# 047431904385, Mfg# ML90438, Free Shipping"

    "Visi-therm Heater Size: 25 WATT Miscellaneous AquariamHigh visibility temp setting with easy-to-view sliding scale tells the exact temperature setting.Click-set temperature dial to accurately set temperature to plus/minus 1 degree fahrenheit with... more

    $33.58

    FREE shipping

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    "Visi-therm Heater, Size: 200 WATT, UPC# 047431904439, Mfg# ML90443, Free Shipping"

    "Visi-therm Heater, Size: 200 WATT, UPC# 047431904439, Mfg# ML90443, Free Shipping"

    "Visi-therm Heater Size: 200 WATT Miscellaneous AquariamHigh visibility temp setting with easy-to-view sliding scale tells the exact temperature setting.Click-set temperature dial to accurately set temperature to plus/minus 1 degree fahrenheit with... more

    $37.20

    FREE shipping

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    "Visi-therm Heater, Size: 50 WATT, UPC# 047431904392, Mfg# ML90439, Free Shipping"

    "Visi-therm Heater, Size: 50 WATT, UPC# 047431904392, Mfg# ML90439, Free Shipping"

    "Visi-therm Heater Size: 50 WATT Miscellaneous AquariamHigh visibility temp setting with easy-to-view sliding scale tells the exact temperature setting.Click-set temperature dial to accurately set temperature to plus/minus 1 degree fahrenheit with... more

    $33.29

    FREE shipping

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    "Marineland Filtration-Visi-therm Heater 100 Watt"

    "Marineland Filtration-Visi-therm Heater 100 Watt"

    "VISI-THERM HEATERHigh visibility temp setting with easy-to-view sliding scale tells the exact temperature setting.Click-set temperature dial to accurately set temperature to plus/minus 1 degree fahrenheit with every click.Advanced mounting bracket,... more

    $26.99

    FREE shipping

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    "Visi-therm Heater, Size: 250 WATT, UPC# 047431904446, Mfg# ML90444, Free Shipping"

    "Visi-therm Heater, Size: 250 WATT, UPC# 047431904446, Mfg# ML90444, Free Shipping"

    "Visi-therm Heater Size: 250 WATT Miscellaneous AquariamHigh visibility temp setting with easy-to-view sliding scale tells the exact temperature setting.Click-set temperature dial to accurately set temperature to plus/minus 1 degree fahrenheit with... more

    $38.85

    FREE shipping

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    "Visi-therm Heater, Size: 150 WATT, UPC# 047431904422, Mfg# ML90442, Free Shipping"

    "Visi-therm Heater, Size: 150 WATT, UPC# 047431904422, Mfg# ML90442, Free Shipping"

    "Visi-therm Heater Size: 150 WATT Miscellaneous AquariamHigh visibility temp setting with easy-to-view sliding scale tells the exact temperature setting.Click-set temperature dial to accurately set temperature to plus/minus 1 degree fahrenheit with... more

    $35.94

    FREE shipping

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    "Visi-therm Heater, Size: 300 WATT, UPC# 047431904453, Mfg# ML90445, Free Shipping"

    "Visi-therm Heater, Size: 300 WATT, UPC# 047431904453, Mfg# ML90445, Free Shipping"

    "Visi-therm Heater Size: 300 WATT Miscellaneous AquariamHigh visibility temp setting with easy-to-view sliding scale tells the exact temperature setting.Click-set temperature dial to accurately set temperature to plus/minus 1 degree fahrenheit with... more

    $40.35

    FREE shipping

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    "Visi-therm Heater, Size: 400 WATT, UPC# 047431904460, Mfg# ML90446, Free Shipping"

    "Visi-therm Heater, Size: 400 WATT, UPC# 047431904460, Mfg# ML90446, Free Shipping"

    "Visi-therm Heater Size: 400 WATT Miscellaneous AquariamHigh visibility temp setting with easy-to-view sliding scale tells the exact temperature setting.Click-set temperature dial to accurately set temperature to plus/minus 1 degree fahrenheit with... more

    $60.64

    FREE shipping

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    "United Pet Group Tetra-Visi-therm Suction Cup"

    "United Pet Group Tetra-Visi-therm Suction Cup"

    "VISI-THERM SUCTION CUPVisi therm deluxe heater helps your aquarium maintain a constant ideal water temperature regardless of room temperature.0 watt -great for 20 gallon tank.UPC : 051378030007Length : 9.5Width : 3.5Height : 2Product Type : Aquatics -... more

    $2.99

    FREE shipping

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    Marineland Visi Therm 200 Watt

    Marineland Visi Therm 200 Watt

    * Submersible aquarium heater with advanced heating element * Redesigned heater boasts superior heat transfer and durability * Set and maintain ideal water temperature for aquarium inhabitants Set and maintain proper aquarium water temperature with... more

    $20.99

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    Marineland Visi Therm 50 Watt

    Marineland Visi Therm 50 Watt

    * Submersible aquarium heater with advanced heating element * Redesigned heater boasts superior heat transfer and durability * Set and maintain ideal water temperature for aquarium inhabitants Set and maintain proper aquarium water temperature with... more

    $17.99

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    Marineland Visi Therm 75 Watt

    Marineland Visi Therm 75 Watt

    * Submersible aquarium heater with advanced heating element * Redesigned heater boasts superior heat transfer and durability * Set and maintain ideal water temperature for aquarium inhabitants Set and maintain proper aquarium water temperature with... more

    $13.99

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    Marineland Visi Therm 150 Watt

    Marineland Visi Therm 150 Watt

    * Submersible aquarium heater with advanced heating element * Redesigned heater boasts superior heat transfer and durability * Set and maintain ideal water temperature for aquarium inhabitants Set and maintain proper aquarium water temperature with... more

    $19.99

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    "Visi-therm Suction Cup, UPC# 051378030007, Mfg# VT-00, Free Shipping"

    "Visi-therm Suction Cup, UPC# 051378030007, Mfg# VT-00, Free Shipping"

    "Visi-therm Suction Cup Miscellaneous AquariamVisi therm deluxe heater helps your aquarium maintain a constant ideal water temperature regardless of room temperature.0 watt -great for 20 gallon tank.All items are brand new, never worn and never used.... more

    $12.25

    FREE shipping

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    Aquatics Marineland Visi-Therm ML90653 Submersible Aquarium Heater, 250 watt

    Aquatics Marineland Visi-Therm ML90653 Submersible Aquarium Heater, 250 watt

    Visi-Therm? Submersible Heaters from Marineland feature direct-set control, guaranteed durability, and certified accuracy to within one degree. Setting the temperature has never been easier. The advanced mounting bracket provides three window positions... more

    $42.19 $21.59

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    Aquatics Marineland Visi-Therm ML90654 Submersible Aquarium Heater, 300 watt

    Aquatics Marineland Visi-Therm ML90654 Submersible Aquarium Heater, 300 watt

    Features: More reliable temperature reading (accurate) Easy to adjust temperature dial Replaces current Visi-Therm heater once available Maintains precise aquarium temperatures to within 1 deg F accuracy Thermal safety switch turns off automatically to... more

    $43.63 $22.69

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    Aquatics Marineland ML90651-00 Precision Submersible Heater, 150 watt

    Aquatics Marineland ML90651-00 Precision Submersible Heater, 150 watt

    Visi-Therm? Submersible Heaters from Marineland feature direct-set control, guaranteed durability, and certified accuracy to within one degree. Setting the temperature has never been easier. The advanced mounting bracket provides three window positions... more

    $40.82 $19.59

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    Aquatics Marineland ML90652-00 Precision Submersible Heater, 200 watt

    Aquatics Marineland ML90652-00 Precision Submersible Heater, 200 watt

    Visi-Therm? Submersible Heaters from Marineland feature direct-set control, guaranteed durability, and certified accuracy to within one degree. Setting the temperature has never been easier. The advanced mounting bracket provides three window positions... more

    $42.13 $20.59

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    Aquatics Marineland ML90650-00 Precision Submersible Heater, 100 watt

    Aquatics Marineland ML90650-00 Precision Submersible Heater, 100 watt

    Visi-Therm? Submersible Heaters from Marineland feature direct-set control, guaranteed durability, and certified accuracy to within one degree. Setting the temperature has never been easier. The advanced mounting bracket provides three window positions... more

    $39.53 $24.48

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    Aquatics Marineland ML90648-00 Precision Submersible Heater, 50 watt

    Aquatics Marineland ML90648-00 Precision Submersible Heater, 50 watt

    Features: More reliable temperature reading (accurate) Easy to adjust temperature dial Replaces current Visi-Therm heater once available Maintains precise aquarium temperatures to within 1 deg F accuracy Thermal safety switch turns off automatically to... more

    $38.77 $17.69

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