Vostermans Varifan Variable Speed Drive with Manual Override Quest Filters carefully dried and finely milled

carefully dried and finely milled

Dosage and use

usually within several days

Severe Conditions:Increase rate to 5-10 mL per gallon water for combatting severe reservoir and growing media conditions

84oz makes/for 5 gallons of disinfectant

Vostermans Varifan Variable Speed Drive with Manual Override Quest Filters carefully dried and finely milledAvailable 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.