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The Can Fan RK plastic tube fan is an economical backward centrifugal extractor with a durable, maintenance free plastic housing. For added protection, it is equipped with a thermal switch, which will turn off the motor in the event of overheating.
RK-S (with 4 Speed Controller)
The addition of the speed controller adds versatility. Each speed setting is factory set and calibrated to produce the most efficient output specific to each fan.
No need for extra electronic speed controllers or transformers.
Flexibility when the grower needs to make seasonal adjustments.
Convenience: increases the ability to match fans with a larger range of filters.