Active Air Duct Fan Speed Adjuster Growing Media and enriched with micronutrients

and enriched with micronutrients

The beneficial bacteria in this microbial inoculant colonize the rhizosphere of your crops

If you need to use the fixture for 220-240v applications

Specifically formulated for tap

Active Air Duct Fan Speed Adjuster Growing Media and enriched with micronutrientsHydrofarm's Fan Speed Controller was designed especially for centrifugal fans. This means it will help prevent damage to fan motors, ensuring longer life. (Meant for use with brushless motors, and all Hydrofarm inline fans, not booster fans) It will correctly and precisely adjust the speed of centrifugal fans. These controllers are more sensitive than any on the market, and are compact and built to last. Features Internal electronic auto resetting