ISTA I-H615 300W Inline External Heater

(1 customer review)
SKU: I-H615 Category:


  • 300W
  • 2 temperature sensors
  • Displayed in Celsius
  • Thermal spraying glass
  • Faster heating process
  • High efficiency
  • External design, easy to install and does not occupy space in the tank
  • Two sensors to exam the temperatures of water (inlet and outlet)
  • Auto power off safety system when:
    -Temperature is over 36?
    -Temperature is 3? more than the set temperature
    -Difference between two sensors is over 5?

1 review for ISTA I-H615 300W Inline External Heater

  1. Steven Brown (verified owner)

    These work very well with a canister filter on both fresh and saltwater. I wish they were in F not C but it’s a minor issue.

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