Active Air Duct Fan Speed Adjuster F10 pH probes are sensitive glass

pH probes are sensitive glass instruments which age through normal use

Driver can be mounted remote

no synthetics used

5 mL per gallon of water during all stages as needed

Double Nickel 55 is a broad spectrum preventive biofungicide for control or suppression of fungal and bacterial plant diseases

Active Air Duct Fan Speed Adjuster F10 pH probes are sensitive glassHydrofarm'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