MARS HYDRO 4 INCH INLINE DUCT FAN AND CARBON FILTER COMBO WITH SPEED CONTROLLER Air Purification DIRECTIONS: Add 5-10 ml per

DIRECTIONS: Add 5-10 ml per gallon of water or nutrient solution

sound-absorbing heavy gauge steel casing

H20 Extraction

- UV bands: 365-420nm

Calcium and magnesium are two of the macro elements that are significant to plants' growth and development

MARS HYDRO 4 INCH INLINE DUCT FAN AND CARBON FILTER COMBO WITH SPEED CONTROLLER Air Purification DIRECTIONS: Add 5-10 ml perWith a 4'' inline fan rated for 205CFM, an activated carbon filter with Australian charcoal, and a knob controller applied to allow easy switching and adjustment of the fan speed, the Mars Hydro 4 inch inline duct fan and carbon filter combo offers you everything you need to set up the ventilation in a grow tent. A good ventilation setup for grow tents measuring up to 3x3 feet. Package Includes: 4" Inline Duct Fan with a knob Speed Controller, 4"