Mars Hydro 4 inch Inline Duct Fan and Carbon Filter Combo with Speed Controller Grow Tent Excellent purification inner core Made

Excellent purification inner core Made of imported Virgin Australian activated charcoal

backing 0-100% settings adaptation and up to 30 LEDs daisy-chained in a group

helping yield more than without a tent

the measurement ranges are - TDS (0 - 9990 ppm)

OD: Outer Diameter)

Mars Hydro 4 inch Inline Duct Fan and Carbon Filter Combo with Speed Controller Grow Tent Excellent purification inner core MadeMars Hydro Inch Inline Duct Fan with Variable speed controller for easy fan speed management. Durable plastic fan housing and blades for low noise(28 dB). Powerful Motor is super energy efficient. Excellent purification inner core Made of imported Virgin Australian activated charcoal, delivering 100% filtered airflow, eliminate some of the most undesirable odors, pungent smell, and particulates from indoor grow tent or hydroponics grow room. Effective