5 Star 300 Gallon Aquarium Heater

of June 2024
1
Best ChoiceBest Choice
Aquarium Heater, 800W, 1200W Bold Double Quartz Tube Heater, Fast Heating, high-Definition Digital Touch Controller, Energy Saving. (Applicable to Fresh Water and sea Water) (1200W)
Buinto
Buinto

10
Exceptional
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2
Best ValueBest Value
hygger Aquarium Heater 300W/500W/800W/1000W, Submersible Fish Tank Heater with Digital LED Controller and Intelligent Leaving Water Automatically Stop Heating System, for Freshwater and Saltwater
hygger
hygger

9.9
Exceptional
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3
Submersible Aquarium Heater, 800W/1200W fish tank heater, double tube heating, rapid heating and energy saving, LED digital temperature controller, suitable for sea water and fresh water(1200W)
TINTOR
TINTOR

9.8
Exceptional
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4
AQQA Submersible Aquarium Heater,100W/200W/300W/500W/800W/1200W Fish Tank Heater,External Temperature Controller LED Temperature Display with 2 Suction Cups Suitable for Saltwater and Freshwater
AQQA
AQQA

9.7
Exceptional
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5
AQQA Aquarium Heater 1000W for 150-300 Gallon Submersible Fish Tank Heater for Aquarium Betta Fish Heater Aquarium Thermostat Heater Hydroponic Freshwater & Saltwater (1000W, 150-300Gal)
AQQA
AQQA

9.6
Exceptional
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6
AQQA Aquarium Heater, 1200W Fish Tank Heater Submersible Betta Fish Heater for Aquarium Thermostat Pond Heater for Freshwater and Saltwater (1200W for 150-300 Gallon Tank)
AQQA
AQQA

9.5
Excellent
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7
Hitop 1000W Digital Aquarium Heater: Titanium Fish Tank Heater with Temperature Control Device, Submersible Heater for Freshwater/seawater up to 300 Gallon
HITOP
HITOP

9.4
Excellent
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8
SOUTH SHORE RETAIL, LLC 300 Watt Aquarium Heater for Fish Tank - Stock Tanks - Koi Pond - Outdoor Pond - De-icer - Fits Tanks 10 Gallons and Up - Most Affordable Digital 300 Watt Heater!
SOUTH SHORE RETAIL, LLC
SOUTH SHORE RETAIL, LLC

9.3
Excellent
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9
Eheim 3619090 Jager Aquarium Thermostat Heater 300W, Black
Eheim
Eheim

9.2
Excellent
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10
Aquatop 1000W Titanium Tube Heater with Digital Controller - Fully Submersible for 200-300 Gallon Fish Tanks, Adjustable High & Low Temperatures, Durable Water Heater, Aquarium Heaters, TTH-1000
Aquatop
Aquatop

9.1
Excellent
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About 300 Gallon Aquarium Heater

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Aquarium Heater, 800W, 1200W Bold Double Quartz Tube Heater, Fast Heating, high-Definition Digital Touch Controller, Energy Saving. (Applicable to Fresh Water and sea Water) (1200W)

hygger Aquarium Heater 300W/500W/800W/1000W, Submersible Fish Tank Heater with Digital LED Controller and Intelligent Leaving Water Automatically Stop Heating System, for Freshwater and Saltwater

Submersible Aquarium Heater, 800W/1200W fish tank heater, double tube heating, rapid heating and energy saving, LED digital temperature controller, suitable for sea water and fresh water(1200W)

AQQA Submersible Aquarium Heater,100W/200W/300W/500W/800W/1200W Fish Tank Heater,External Temperature Controller LED Temperature Display with 2 Suction Cups Suitable for Saltwater and Freshwater

AQQA Aquarium Heater 1000W for 150-300 Gallon Submersible Fish Tank Heater for Aquarium Betta Fish Heater Aquarium Thermostat Heater Hydroponic Freshwater & Saltwater (1000W, 150-300Gal)

High Quality MaterialThe shell of AQQA aquarium heater is made of PC plastic, much more heat-resistant than ABS material, can resist up to 180 The heating rod is made of explosion-proof and insulated quartz glass Double sealing and waterproof, preventing leakage of water and electricity. Much safer for human and your lovely fishes.. Intelligent Temp Control Range 61-90 AQQA aquarium heater adopts nickel-chromium heating wire, features fast heating, high precision of temp control. The heater will power off automatically when reaching the set temp and will start heating again when the water temp is 1 lower than the set temp. Alway provide a safe and comfortable living environment for your fishes.. Easy Installation and Temp SettingYou can install it at any angle by 2 powerful suction cups, just make sure it is under water fully. You can set temp with an external temp controller, press the button for 3 seconds to switch beween and and every press to adjust 1 . Easily adjust the temp without hands getting wet. Note the controller is not waterproof. Heater Protection System With anti-dry heating and overheating protection, when the heater is not fully immerged into water, the aquarium heater will stop heating and alert, controller display E1 When the water temperature exceeds 9535, the heater will stop heating and alert, controller display HH. Protecting your fish from over-heat scalding.. Warm NotificationPlease note that the aquarium heater must be fully submerged in the water but don't bury it into sand or mud. Please put the heater near the water flowing area to prevent uneven heating and unplug the power supply when cleaning the fish tank or aquarium water changes. Any problems, please feel free to contact us..

AQQA Aquarium Heater, 1200W Fish Tank Heater Submersible Betta Fish Heater for Aquarium Thermostat Pond Heater for Freshwater and Saltwater (1200W for 150-300 Gallon Tank)

Hitop 1000W Digital Aquarium Heater: Titanium Fish Tank Heater with Temperature Control Device, Submersible Heater for Freshwater/seawater up to 300 Gallon

SOUTH SHORE RETAIL, LLC 300 Watt Aquarium Heater for Fish Tank - Stock Tanks - Koi Pond - Outdoor Pond - De-icer - Fits Tanks 10 Gallons and Up - Most Affordable Digital 300 Watt Heater!

High Wattage For Multiple Uses 300 Watt Heater for Fish Tank - Stock Tank Deicer - Koi Pond - Outdoor Pond - De-Icer - Fits Tanks 10 Gallons and Up - Most Affordable Digital 300 Watt Heater 75 Gallons and up can mount Vertical or Horizontal. See video demonstration for examples.. Safe Efficient Nickel Chromium wiring to conduct heat. - Reinforced tubing protection -. Unit Dimensions 15x1.25x1.25 inches. Veteran Owned and Operated Company. 100 Satisfaction Guarantee If you have any issues at all please message us for a full refund..

Eheim 3619090 Jager Aquarium Thermostat Heater 300W, Black

Heater is meant for Tanks between 159-264 Gallons.. Size of Heater is 20 X 1.4 Diameter. Fully submersible, will automatically turn off when water level dips too low.. Thermo safey control protects against running dry.. Made of shock resistant and shatter proof glass for fresh or marine water.. OnOff indicator light for at-a-glance monitoring..

Aquatop 1000W Titanium Tube Heater with Digital Controller - Fully Submersible for 200-300 Gallon Fish Tanks, Adjustable High & Low Temperatures, Durable Water Heater, Aquarium Heaters, TTH-1000

FULLY SUBMERSIBLE AQUARIUM HEATER Aquatop 1000W Hercules Heater offers precise control to ensure stable water temperatures for all aquatic life with a heavy-duty design.. GREAT FOR FRESH SALTWATER TANKS Aquatops aquarium heater is suitable for both freshwater and saltwater marine aquariums from 200-300 gallons.. PREVENTS OVERHEATING The heater for fish tanks includes a dual digital controller and has a highly visible LED display. Dual relay interwork disables element in case of overheating for extra protection.. ADUJUSTABLE TEMPERATURE SETTINGS The adjustable high and low temperature settings of this water heater have audio alerts for ideal function. The accuracy will eliminate temperature functions of 1.8F 1C.. DURABLE TITANIUM BUILD The ultra-tough titanium heating element construct is extremely durable for long lasting use and handle large fish..