Vostermans Varifan Variable Speed Drive with Manual Override Size:40 Amp Application RatesAdd 2-5 mL of

Application RatesAdd 2-5 mL of Grow B per gallon of water during the vegetative growth phase

Bluelab Pro Controller automated pH and nutrient controller gives you full control of reservoir pH

Bloombastic simulates the enzyme process

Transform standard 3

Vostermans Varifan Variable Speed Drive with Manual Override Size:40 Amp Application RatesAdd 2-5 mL ofAvailable in three different models that have a 0 10 V or 4 20 mA input signal. Easy to access toggle switch to select manual or automatic mode as well as a manual speed selector dial on the faceplate. Internal minimum speed adjustment with possibility to work continuously at minimum speed. Comes in a rugged, sealed enclosure that protects from light, moisture and dust. Includes extended supply voltage range and a radio interference filter.