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Aqueon Preset Heater

$16.19
Preset to 78 degrees, appropriate for most tropical fish. Fully submersible, shatter-resistant construction Automatic safety shut-off avoids overheating and damage

DaToo Mini Aquarium Heater 25W Small Fish Tank Heater 25 Watt with Free Thermometer Sticker

$11.99
Make sure this fitsby entering your model number. 🐠25W Betta Aquarium Heater -- Creating and maintaining a perfect and comfortable water temperature for our cute fish is not easy, which requires a lot of effort. Now DaToo MINI 25W Aquarium Heater can help you make this easier. Precise and constant temperature, no need to set, keep the temperature of fish habitat in the best state at all times. You will find it very easy and happy to take care of pet fish! 🐠Precise And Constant Temperature -- No need to set, DaToo Fish Tank Heater will automatically keep the water temperature of the fish habitat at 78℉. This temperature is very suitable for betta and most tropical fish. When the water temperature is lower than 78℉, the heater starts to heat and the red light is on. When the temperature reaches 78℉, the heater stops heating and the green light is on. DaToo will always maintain this comfortable temperature for your beloved fish!

Eheim Jager Aquarium Thermostat Heater

$32.99
Fully submersible Thermo safey control protects against running dry Will automatically turn off when water level dips too low

Fluval M50 Submersible Heater

$23.99
Aquarium heater that blends into the aquarium environment with built-in reflective technology that mirrors the surrounding colors Computer-calibrated thermostat and easy-to-adjust temperature control dial Shock resistant Borosilicate glass and high density ceramic heat sick

FREESEA 25/50/100/200/300 Watt Aquarium Heater with Aquarium Submersible Thermometer

$15.99
★【25 Watt Heater】: This Aquarium heater is suitable for 1 to 5 gallons aquariums, Length - 6.8 inch,voltage 110-120V, power cord is 4.0 ft, please choose the right wattage aquarium heater according to our size chart. ★【Temperature range】: 63°F~95°F , It is very easy to adjust the temperature you need, we also deliberately give each customer a free diving thermometer, you can observe the water temperature of the fish tank at any time. ★【Intelligent temperature control】: Automatic constant temperature function, when water temperature reaches to specified temperature value, heater will automatically stop heating, when water temperature is lower than the set temperature, heater will automatically start heating. Furthermore, Automatic safety shut-off feature, and overheating protection.

FREESEA Aquarium Heater Fish Tank Submersible Heater (50W/75W/100W) with LED Temperature Display

$18.99
★ Temperature range: 59°F~94°F, display Fahrenheit °F, this heater is designed for1~10 gallons tank. ★ Automatic constant temperature function, when water temperature reaches to specified temperature value, heater will automatically stop heating, when water temperature is lower than the set temperature, heater will automatically start heating. ★ Touch button, cyclic adjust temperature , easy to use and Safety.

GMsound Aquarium Heater Submersible Fish Tank Water Heater Thermostat

$15.99
Fully Submersible. Power: 100W. Suggested water volume: 15-45 gal. Adjustable Temperature: The temperature of the fish tank heater can be adjusted automatically. Temperature setting range: 65° F - 93° F(20°C~34°C), and the display is easy to read. High Quality: Aquarium heater made of high quality quartz glass, double seal material , advanced design, ensures safe operation.Fully suiting for fresh or saltwater aquariums, provide a constant warm environment for your tropical fish to stay healthy.

hygger 500W 800W Titanium Steel Aquarium Heater for Marine and Fresh Water, Digital Submersible Heater with Built-in…

$79.99
【Energy Saving Heater for Aquarium Over 60 Gal】voltage 110-120V/60HZ, power 500W, US three-pin plug, heater length 7.9 inch. The heater power cord and the controller cord are both 5ft. 800W aquarium heater for fish tank 60-120 gallon. Fast heating up aquarium heater, it takes about 3 minutes to heat 3.5 gallon water up 3℉. With 2 heating modes: Max heating, Eco heating, more energy saving than general high power heater 【Auto Shut Off When Overheating or Not Fully Submerged】with built-in thermometer and waterline detector, when the water temp is over 97F, the controller will auto shut off to prevent overheating, when the top of heating element is out of water over 0.8 inch, the controller will auto shut off and stop heating and will automatically restart heating after you place the heater fully under water 【Dual Digital Displays on Controller & Heater】the digit display on the heater is to show the current water temp, the controller digit display will show the current water temp and the set temp. When you want to check the water temp, you can see that on the heater or the controller display, the digits are synchronized updated

hygger 50W 100W Submersible Digital Display Mini Aquarium Heater for Small Fish Tank, Compact and Fast Heating…

$19.99
🐠【Compact Small Heater】110-120V/60HZ oval shape design little aquarium heater, fast heating for small fish tank. 50W tank heater is for 1-6.5gallon, 100W tank heater is for 6.5-13 gallon. Heater Dimension: 2.7x1.4x 4.5 inch. The power cord is 5ft, long enough for use indoors. With 2 strong suction cups at the back side of the betta heater, it's easy to install it on to glass, acrylic or plastic tank 🐠【External Controller】easy to set the temp on the controller, only show farenheit temp, you can set the temp range from 63℉ to 94℉, temp accuracy 1℉. Every time you set the temp, just press the button over and over until it reaches to your desired temp, then stop and wait the digit flashing for 3 times, then setting is done. Keep the controller away from water, it's not waterproof 🐠【Digital Display】with led display on the midle of the heater front side, when the fish tank heater is heating, there indicator light above the digit is on red, when it stop heating, the light is off. The heater with a built-in thermometer, when temp setting is done, the led will show the water temp all the time. The led will display the set temp digit only when you press the controller

Inkbird ITC-306T Pre-Wired Electronic Heating Thermostat Temperature Controller and 24 Hours Digital Day & Night Cycle…

$25.49
Make sure this fitsby entering your model number. 👏👏【Convenient Design】Plug and play, easy to use. Support reading with Centigrade or Fahrenheit. 👏👏【Dual Display Window】Be able to display measured temperature and set temperature at the same time.Temperature calibration, over-temperature and sensor fault alarm. Maximum output load: 1200W (110V).

K&H Pet Products Perfect Bucket Heater w/ Cord Clip Gray 5″ 80W

$22.09
Safely Maintains open water to -20 Degree Durable Enamel finish is easy to clean Thermostatically controlled, using Only 80 watts

Marineland Precision Heater for Saltwater or Freshwater Aquariums

$20.30
This 50 watt heater is for aquariums up to 12 gallons. Adjustable temperature dial allows you to set the temperature 1 degree with every click. Thermal Switch automatically turns off as temperature rises above an internal preset and turns back on once it cools down. The advanced heating element contains a mica core surrounded by a mesh heating element for superior heat transfer with enhanced durability