• $59.99
  • Free 30-day Returns
  • Shipped by halongzhiUKshop

    Price alert

    Best Sellers

    Newegg
    • + $11.20 Shipping
    Shop it at NeweggBusiness.

    Meet Your Seller

    Aquarium Heater for 40-55-75 Gallon, 300W Submersible Fish Tank Water Heater with Accurate Temperature Control, Over-Temp Protect, Auto Shut-Off, Quick Heat up for Saltwater & Freshwater

    • [Accurate Temperature Control +-1 °F] It ensures the water temperature is accurate at the setting temperature +-1°F. Different from others, thanks to the integrated design in which the PID temp-chip and nickel-chromium wires are connected directly. When the AHJ aquarium heater is in the water, it could detect the real temperature super fast and make regulations quickly. Ensure a stable and warm water comfortable for your aquatic fishes, betta, turtle
    • [Upgrade Intelligent Safety Protection] Protection against overheating, Over-temperature, and lack of water protection, Anti-dry burning functions. Safeguard your fish and aquarium with advanced safety measures. When the water temperature exceeds 94, the LCD digital display will display HH and keep flashing to remind. When the digit heater detects the fish tank's lack of water, it will auto-shut off
    • [Heating Fast & Keeps Stable] Enjoy fast and efficient heating with the AHJ aquarium heater. Quick temperature adjustment, hassle-free setup. Experience rapid heating for your 40-70 gallon (recommend 300 watts). If you are not sure which size and watt suits your fish tank, please measure the L W H, and contact our customer service
    +
    +
    Overview
    Specs
    Reviews
    avatar

    Any questions? Our AI beta will help you find out quickly.

    aquarium heater fish tank heater
    300w aquarium heater 500W aquarium heater
    heater

    The heating rod can be sideways, erected, and placed in the water obliquely. Just ensure that the water level line is immersed in water.

    heater
    heater
    aquarium heater
    • The water level is too low. Make sure the heater and the temperature sensor on top are fully immersed in the water.

      (The heating rod cannot be covered with sediment, otherwise it will cause damage due to uneven heating. )

    • HH: Water temperature exceeds 94°F, over-temperature warning and the aquarium will stop heating.

      LL: Low temperature warning when the water temperature is lower than the set value. This usually happens during a water change.

    • Deposits attached to glass tubes can affect temperature sensing and transmission. Please cut off the power supply, clean the heater and remove any attached sediments.

      (Soak the heater in 84 for 1-2 hours).

    • When changing or cleaning the aquarium.

      Turn off the heater first.

      Note: Wait at least 10 minutes before removing the heater from the water. Otherwise, the internal glass heating tubes will melt the heater shell instantly at temperatures above 400°F.

    • The aquarium is too small or less water. The heater heats up too quickly. Heating will stop after 3 to 5 minutes.

      When using a heating rod, a water pump or filter must be installed to maintain water circulation to ensure consistent water temperature.

    aquarium heater fish tank heater
    300w aquarium heater 500W aquarium heater
    AGU3H-300C

    The heating rod can be sideways, erected, and placed in the water obliquely. Just ensure that the water level line is immersed in water.

    aquarium heater fish tank heater
    digital aquarium heater titanium aquarium heater pond heater titanium heater
    heater for fish tank 40 25 75 120 gallon
    • The water level is too low. Make sure the heater and the temperature sensor on top are fully immersed in the water.

      (The heating rod cannot be covered with sediment, otherwise it will cause damage due to uneven heating. )

    • HH: Water temperature exceeds 94°F, over-temperature warning and the aquarium will stop heating.

      LL: Low temperature warning when the water temperature is lower than the set value. This usually happens during a water change.

    • Deposits attached to glass tubes can affect temperature sensing and transmission. Please cut off the power supply, clean the heater and remove any attached sediments.

      (Soak the heater in 84 for 1-2 hours).

    • When changing or cleaning the aquarium.

      Turn off the heater first.

      Note: Wait at least 10 minutes before removing the heater from the water. Otherwise, the internal glass heating tubes will melt the heater shell instantly at temperatures above 400°F.

    • The aquarium is too small or less water. The heater heats up too quickly. Heating will stop after 3 to 5 minutes.

      When using a heating rod, a water pump or filter must be installed to maintain water circulation to ensure consistent water temperature.

    Aquarium Heater for 40-55-75 Gallon, 300W Submersible Fish Tank Water Heater with Accurate Temperature Control, Over-Temp Protect, Auto Shut-Off, Quick Heat up for Saltwater & Freshwater

    Warranty & Returns

    Warranty, Returns, And Additional Information

    Warranty

    • Please contact the Seller directly for warranty information. Warranty information may also be found on the Manufacturer's website.
    • CONTACT

    Return Policies

    Manufacturer Contact Info

    LOADING...
    LOADING...