HiTauing

HiTauing Aquarium Heater 300W Fish Tank Heater with LED Digital Display 5 Safety Protection Submersible Aquarium Heater with

$39.59

369+ bought in the past month

About this item

  • 【Aquarium Heater 300W】-- The 300 watt aquarium heater produces stable power with quick heat up. It's length is 10.6'', voltage 110-120V, power cord is 8.2ft (cable cord length: 4.6 feet, power cord length: 3.6 feet) . Aquarium heater for 40 to 75 gallons, ideal uses for the marine saltwater and freshwater, fish tanks, turtle tanks, betta tanks, small ponds, and so much more.
  • 【Safe and Durable Fish Tank Heater】-- The components of this 300W fish tank heater are designed for safety and durability, and encased in a high-durability ABS shell. The nickel-chromium heating wire and quartz glass are made of high-temperature resistant materials, along with explosion-proof quartz sand, giving the product a high level of safety and durability.
  • 【Comprehensive Protection Submersible Aquarium Heater】-- Our submersible aquarium heater have 2 intelligent protector to avoid damage to the product and its circuitry. ①Over max temp warning, when the temperature is higher than the maximum temperature 94℉/34℃, the code HH appears and automatically stop heating. ②Off-water warning, when the submersible aquarium heater is higher than the level of the fish tank water code E1 appears and automatically stop heating.
  • 【Tank Heater with Digital Display and 2 Suction Cups 】-- Tank Heaterwith a digital display temperature control system, you can monitor the water temperature and set temperature in real time. Variable temperature settings range: 63-94℉/ 17-34℃. Press and hold the button 3S to switch ℉ and ℃. Each press will ±1℉. Red light is on when heating and green light is on when temperature is hold.
  • 【Hitauing Submersible Water Heater Promise】-- As a brand seller, our main purpose is to provide our dear customers with high quality aquarium heater and to take responsibility for your purchases. If you have any problems with our submersible water heater in the future, please do not hesitate to let us know and we will do our best to help you slove it.
$39.59

In Stock

Easy Returns · Return eligibility shown before checkout


How you'll get this item

DeliveryShipping details confirmed at checkout

Fulfillment

Ships fromVentari
Sold by
LUYS
Returns
Easy ReturnsReturn eligibility shown before checkout
PaymentsPayment details confirmed at checkout

Currently unavailable
Easy Returns · 30-day window
Technical specifications
item_weight1.3 pounds
manufacturerHiTauing
item_model_numberHZ-803-300W
date_first_availableOctober 24, 2022
item_package_dimensions_l_x_w_x_h13.78 x 6.06 x 2.64 inches
item_dimensions_lxwxh13 x 6 x 2 inches
brand_nameHiTauing
target_audience_keywordFish
directionsThe aquarium heater should be completely immersed in water, the temperature controller can not be put into the water. <br>When cleaning or maintaining the aquarium heater, please turn off the power for 5-10 minutes before removing it for cleaning.
size300 Watt Aquarium Heater
is_discontinued_by_manufacturerNo
product_dimensions13 x 6 x 2 inches; 1.3 Pounds
best_sellers_rank#5,945 in Pet Supplies ( See Top 100 in Pet Supplies ) #12 in Aquarium Heaters

From the brand

Product detailProduct detailProduct detailProduct detailProduct detail

Product videos

Product video 1

Customer reviews

4.51,849 ratings
  1. 575%
  2. 413%
  3. 30%
  4. 20%
  5. 113%

Customers say

Customers find the aquarium heater works well, particularly for 75-gallon tanks, and appreciate its ability to bring water temperature up quickly and maintain consistent levels.

★★★★★

Great Heater

JenelleFebruary 9, 2026✓ Verified purchase

Heater works great in my 60 gallon tank. I love that it shows the temperature of the water as well as the set temperature. The heater does keep the memory. We had a power outage and when it turned back on it had my preset temperature. Highly recommend. Read more

★★★★★

Great Heater

Alina J.May 18, 2025✓ Verified purchase

I got this heater to replace one that I had for several years in a 75 gallon freshwater tank. I received it quickly and it works as described. It installed quickly and easily. The suction cups on the back seem like they'll hold up pretty well. I like that you can control the settings without reaching inside the aquarium and that it shows the water temperature as well. I've had this for a couple of days and so far it is working well. I haven't noticed any issues. I will come back and update this if I do within the next month or so. The only thing that would make this better would be to include some sort of holder that could attach to the outside of the aquarium for the controller. That's just my suggestion and not enough to take a star off for. Read more

★★★★★

Works great

NickMarch 11, 2026✓ Verified purchase

Takes about 24hrs to heat up from 70° to 82°, which is perfect and safe for the fish. Very good value and design. Read more

★★★★★

Awesome buy!

GabriellaJanuary 6, 2026✓ Verified purchase

This is a necessity for fish tanks. It's so easy to use, it's digital so you don't have to guess with the stickers on the glass, I love how long the plug is so I'm able to hide it behind the tank, this heats up my tank so quickly, and it's been used for 2 years now- I bought another tank and ended up buying this item to use for that tank too. Great buy! Read more

★★★★☆

Great heater!

LillianMay 28, 2025✓ Verified purchase

Great heater for big tanks — works like a charm! ⭐️⭐️⭐️⭐️☆ I got this HiTauing 500W heater for my 90-gallon tank, and it’s been doing a great job so far. It heats the water quickly and keeps the temp super steady, which my fish definitely appreciate. The digital display is really handy—easy to read, and I like that it shows both the current temp and the one you’ve set. Setting the temp is simple, though you do have to reach into the tank to do it since there’s no external controller. Not a huge deal, but worth noting. It feels safe too. It has auto shut-off and overheat protection, which is nice for peace of mind. I actually tested the safety shut-off by pulling it out of water for a second (carefully), and it turned off like it’s supposed to. The suction cups hold pretty well for now, though like all of them, they might need adjusting over time. The 8-foot cord is awesome—plenty long even if your outlet isn’t right next to your tank. It’s a little bulky, but honestly, for a 500W heater, that’s expected. It’s hidden behind some plants, so I don’t mind. Bottom line: If you’ve got a 75-120 gallon tank and want a solid, no-fuss heater that does its job, this is a great pick. Would definitely recommend! Read more

★★★★★

Superb customer service; excellent product

dottiesfNovember 24, 2025✓ Verified purchase

Purchased a total of 4 of these. Had a problem with 2 and contacted the company--a year later but within their 2 year warranty. Didn't really expect to get helped after so much time. The 2 malfunctioning heaters would come up to temp and then start blinking an HH error code. The company was excellent to work with and was very professional and helpful. They are sending out 2 replacement heaters as I write. The other 2 heaters have been working great and I would definitely buy again with such superb customer service. Read more

★☆☆☆☆

Most annoying noise on the planet

ZZBanditFebruary 6, 2026✓ Verified purchase

Not sure what others have experienced with all the positive reviews but here goes. Installed the heater as a secondary heater for a large tank. The temp was obviously low and the heater did a great job catching up and normalizing the temperature in the tank. It had an obnoxious high piercing whine while leveling up to the desired temperature which I was ok with. The downside is if the temperature drops even 1 degree that high pitched whine starts up again. COMPLETELY ANNOYING!!! I'm ok with a warning signal if tank temp drops to maybe 4 degrees below the expected range but 1 degree? Seriously?!? I'll give it a day to see if anything changes but if not, shipping this back. Read more

★★★★★

Perfect for larger tanks.

CalebJanuary 25, 2026✓ Verified purchase

Works great for 125 gallon tank. Love the thermostat on it. Not super long but long enough to spread out the heat. Seems to be a lot sturdier than other heaters. LOVE IT Read more

Review image 1Review image 2
Recently Viewed

We use optional analytics cookies to understand how visitors use Ventari and improve the experience. This banner controls analytics measurement only. See our Cookie Policy.