4" Ventilation Kits and Fans

4" Air Filtration Kit A grow tent air filtration system with all the necessary inline components you need to ventilate your grow space. By assembli...

AC Infinity Air Filtration Kit  - 4" A grow tent air filtration system with all the necessary inline components you need to ventilate your grow spa...

Spider Farmer Air Ventilation Kit with Temperature Humidity Control - 4" PROGRAMMABLE INLINE FAN: Mixed flow design combined with an EC motor ens...

Featuring a 4 inch inline duct fan rated for 205CFM and a carbon filter with Virgin Australian activated charcoal, controlled by a digital touch-sc...

With a 4'' inline fan rated for 205CFM, an activated carbon filter with Australian charcoal, and a knob controller applied to allow easy switching ...

AC Infinity S4 Grow Room Ventilation Package - 4" The AC Infinity Cloudline S4, Quiet Inline Duct Fan System With Speed Controller, 4-inch duct fan...

Spider Farmer® Grow Kits 4-inch Inline Fan, Air Carbon Filter, Ducting, Ventilation Combo POWERFUL INLINE FAN: The housing is made of a heavy-dut...

CLOUDLINE T4, QUIET INLINE DUCT FAN SYSTEM WITH TEMPERATURE AND HUMIDITY CONTROLLER, 4-INCH A smart inline duct fan designed to quietly ventilate h...

CLOUDLINE S4, QUIET INLINE DUCT FAN SYSTEM WITH SPEED CONTROLLER, 4-INCH The duct fan system is designed to quietly cool AV equipment rooms and clo...

Spider Farmer Air Ventilation Kit with Speed Controller - 4" POWERFUL INLINE FAN: Mixed flow design combined with an EC motor ensure a truly ener...