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Rena SmartHeaters Aquarium Heaters

Starting at:$25.99

Whatever is left in stock!!! These heaters have been discontinued by manufacturer. Great heaters but like many other products they are being discontinued due to low sales.


Unbreakable SmartHeater is safe to the touch even when heating. Durable plastic housing resists mechanical and heat impact.

Fully submersible heaters work in any position (horizontal or vertical) to provide optimum aquarium water temperature.

Tubular SmartHeater design allows efficient heating to prevent temperature variations within the aquarium.

Features a LED alert system that flashes if water temperature deviates 5F from set temperature. Temperature range between 69F and 93F.

Includes suction cup mounting system. 74" long cord. UL-Listed.



  • Durable aquarium heater resists damage for reliable heater performance
  • Tubular heater design prevents temperature variation in aquariums
  • Use as a conventional aquarium heater or connect to FilStar XP Filters
  • Fits as intake tube to all RENA SmartFilters and RENA FilStar XP1 through XP4 Canister Filters, or by itself as a conventional heater. Allows for a less cluttered aquarium and more even heating in one integrated system.
  • Patented interactive display LED lighting with " Abnormal Temperature" alert that flashes fast when water temperature deviates +/- 5F from set temperature.
  • Five models: 50, 100, 150, 200, and 300 watts to provide a heater that fits all sizes of aquariums.
  • Made with high quality, durable and unbreakable plastic meeting UL standards. Safe to touch even when heating.
  • Energy-efficient tubular design heating both internal and external surface of the heater. This design feature provides even heat distribution to prevent unwanted temperature variations within the aquarium.
  • Super accurate temperature settings with a wide temperature range (69F to 93F). This temperature range allows hobbyists to have extremely accurate temperatures to replicate all types of aquarium environments.


Connect to RENA SmartFilter or FilStar XP Filters for integrated heating.

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  • Model: REN1637
  • Manufactured by: Rena

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