boxtech 300w Fish Tank Heater - Aquarium Heater with Led Digital Display, External Temperature Controller, Overheat Protection for 35 to 70 Gallon Tank - size: 300w for 35 to 70 gallon tank

boxtech 300w Fish Tank Heater - Aquarium Heater with Led Digital Display, External Temperature Controller, Overheat Protection for 35 to 70 Gallon Tank - size: 300w for 35 to 70 gallon tank

$63.16
Sale price  $63.16 Regular price 
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boxtech 300w Fish Tank Heater - Aquarium Heater with Led Digital Display, External Temperature Controller, Overheat Protection for 35 to 70 Gallon Tank - size: 300w for 35 to 70 gallon tank

boxtech 300w Fish Tank Heater - Aquarium Heater with Led Digital Display, External Temperature Controller, Overheat Protection for 35 to 70 Gallon Tank - size: 300w for 35 to 70 gallon tank

$63.16
Sale price  $63.16 Regular price 
Taxes included. Shipping calculated at checkout.

About this item

  • 【300w Aquarium Heater】 This 300W fish tank heater is designed for 35 to70 gallon tanks and comes with a 5.35 ft power cord for flexible placement. Its slim and strong suction cups allow easy, space-saving installation in betta bowls, nano tanks, and shallow turtle habitats.
  • 【Enhanced Safety & Automatic Protection】 Built with waterproof, safety-insulated materials. The heater automatically shuts off if removed from water and features smart self-diagnosis—E1 indicates dry-run protection, E3 signals overheat protection. Auto-memory restores your settings after any power interruption.
  • 【Accurate Digital Temperature Control】 Adjust the temperature precisely between 68 °F and 93 °F . A clear LED display shows the current temperature and any error codes. Use the external controller to adjust settings without wetting your hands, and enjoy consistent, reliable heating for a healthy aquarium environment.
  • 【Energy-Efficient & Rapid Heating】 Optimally matched for 35 to 70 gallon aquariums, metal-ceramic element deliver fast, even heat while using less energy. After the initial 72 hour warm up, it maintains a stable temperature with minimal fluctuation.
  • 【Durable, User-Friendly & Reliable】 Built with robust materials for long-term use and trusted performance. Simple to operate: hold the button for 3 seconds to switch between °C/°F. For best results, install vertically in fish tanks or horizontally in turtle tanks—do not bury in substrate.

Overview

  • Product Dimensions ‏: ‎ 8.86 x 4.72 x 2.56 inches; 12.31 ounces
  • Item model number ‏: ‎ BT-G300
  • Date First Available ‏: ‎ August 20, 2025
  • Manufacturer ‏: ‎ Boxtech
  • ASIN ‏: ‎ B0FN3L6CBK
  • Best Sellers Rank: #23,873 in Pet Supplies (See Top 100 in Pet Supplies) #39 in Aquarium Heaters
  • Customer Reviews: 3.2 3.2 out of 5 stars (2)

Made with care

Great value

Elegant design

Quality materials

Details

This product is crafted with quality materials to ensure durability and performance. Designed with your convenience in mind, it seamlessly fits into your everyday life.

Shipping & Returns

We strive to process and ship all orders in a timely manner, working diligently to ensure that your items are on their way to you as soon as possible.

We are committed to ensuring a positive shopping experience for all our customers. If for any reason you wish to return an item, we invite you to reach out to our team for assistance, and we will evaluate every return request with care and consideration.

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