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Orlushy Submersible Aquarium Heater, Fish Tank Heater with Free Thermometer for Freshwater and Saltwater Tank

  • Based on 1,357 reviews
Condition: New
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Availability: In Stock.
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Arrives Wednesday, Aug 12
Order within 4 hours and 7 minutes
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Size: R300


Features

  • Orlushy aquarium heaters come in six different sizes, suitable for small fish tanks, aquariums and turtle tanks. Please choose the right wattage aquarium heater according to our size chart.
  • Safer and More Durable Quartz Glass: This aquarium heater is made of gray quartz glass, which has higher hardness than regular quartz glass, more high-temperature resistant and explosion-proof. This material makes the heater safer and more durable to be used in both freshwater and saltwater, longer service life is provided.
  • Stable Heating: Stair shape heating that red light is on and heater starts to intermittently heat the water to the set temp, saving energy and electricity. When green light is on, heater stops working and maintains the temperature constantly. It also come with a separate thermometer for real-time monitoring of the aquarium water temperature.
  • Cautions: 1.Please ensure the heater is 100% submerged into the water before plug in the power. 2. Please unplug the power and cool down the heater for 10-20 minutes before taking it out to clean the fish tanks or change the water.
  • Free Thermometer and 180 Days Warranty: This fish tank heater comes with one free strip thermometer for better temperature calibrator as well as 180 days warranty that free replacement of heater are provided if any problem occurs to it. If you have any issue with the heater, please feel free to contact us. We would provide a timely after-sale service.

Package Dimensions ‏ : ‎ 10.67 x 4.84 x 2.44 inches; 14.39 ounces


Item model number ‏ : ‎ RH300


Date First Available ‏ : ‎ October 30, 2024


Manufacturer ‏ : ‎ Orlushy


Best Sellers Rank: #20,605 in Pet Supplies (See Top 100 in Pet Supplies) #25 in Aquarium Heaters


#25 in Aquarium Heaters:


Customer Reviews: 3.8 3.8 out of 5 stars (1,357)


Item Weight: 14.4 ounces


Manufacturer: Orlushy


Item model number: RH300


Date First Available: October 30, 2024


Item Package Dimensions L x W x H: 10.67 x 4.84 x 2.44 inches


Brand Name: Orlushy


Target Audience Keyword: fish


Color: gray


Size: R300


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, Aug 12

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Nice!
Size: R100
Works great, very easy to set and gives water temp. It makes my other heaters look like old tech.
Reviewed in the United States on May 28, 2026 by mark s.

  • Error Code E1 (Total Failure) After 9 Months of Use. Do Not Buy
Size: R200
I got this heater for a 20 gallon long platy breeding tank. When it worked it worked well, but I woke up yesterday morning to the E1 error, which from what I understand, means the heating element is completely dead. Less than a year and gone. This seems to be a common problem with this heater. Save your money and get something else. ... show more
Reviewed in the United States on June 16, 2026 by Josh Kelso

  • Great quality
Works great, very durable 5 Stars ⭐️
Reviewed in the United States on June 9, 2026 by Stacy Olson

  • Hot!
Size: R100
Worked too good!! Melted my plastic water fountain filter thing.. but mostly caus ethe suction cups melted off first then it floated up and melted the next thing xd
Reviewed in the United States on February 8, 2026 by Alexander Medina

  • Easy to move around aquarium
Size: R300
A great combination of being submersible and digital...An AWESOME product...
Reviewed in the United States on June 13, 2026 by Mr. Make it

  • Do not last
Size: R300
Do not purchase! I had bought a total of 6 for different tanks. Overnight one stopped working, it was still freezing outside. Tank dropped to 66 from 80 degrees and the shock killed around 15 fish. I went ahead and ordered a new one thinking just one bad one. Since then 3 more have died. All the same error E 01. Nothing fixes them. I owned all less than 6 months before they failed. I only have 2 of the original ones and now check my temps regularly because I do not trust them. Will never buy again! ... show more
Reviewed in the United States on May 29, 2026 by Adrian

  • Works much better than my old one
Size: R300
This works well. I like the ability to set the temperature and to see the current temperature. I wish the digital display was positioned closer to the heater end of the cord rather than to the power plug part because It almost on the floor to the side of my tank. I want to see it higher up not on the ground. I did tape the temperature strip on the side of the tank but it has not displayed the temperature yet. Overall good product but could use an improved design on the cord. ... show more
Reviewed in the United States on March 4, 2026 by ST

  • Best heater I have used!
Size: R200
I have different watt versions of this heater in all of my tanks! They are flawless! Accurate temperature control and ease of use! Best part is the controls are on the cord not the actual heater
Reviewed in the United States on April 27, 2026 by kurtis barb

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