MARS HYDRO 4 Inch Inline Fan and Filter, with Temperature and Humidity Controller, and 25 Feet Ducting, Exhaust Fan for Grow Tents, Hydroponics Water Pumps Easy to Install: Open the

Easy to Install: Open the package and store your new utility pump in a safe

water systems

The waterproof coating on the LED diodes protects the G3000 from safe operation in wet conditions

Perfect for 2

MARS HYDRO 4 Inch Inline Fan and Filter, with Temperature and Humidity Controller, and 25 Feet Ducting, Exhaust Fan for Grow Tents, Hydroponics Water Pumps Easy to Install: Open theBrand: MARS HYDRO Color: Black Features: CARBON FILTER FAN COMBO: 4 inch inline duct fan with digital controller, 4 inch carbon filter, 25ft length flex ducting, 3 duct clamps. MARS HYDRO's complete ventilation system provides adequate ventilation and prevents odors in your tent or grow room. TEMPERATURE AND HUMIDITY CONTROL The digital controller with Intelligent temperature humidity controller programming, fan speed control, timer, and alarm