Collection: 4 Inch Fans

AC Infinity Air Filtration Kit PRO 4", Inline Fan with Smart Controller, Carbon Filter & Ducting Combo

4.67 / 5.0

(3) 3 total reviews

Active Grow 4" Ventilation Kit

5.0 / 5.0

(1) 1 total reviews

AC Infinity CLOUDLINE T4, Quiet Inline Duct Fan System with Temperature and Humidity Controller, 4-Inch

Spider Farmer 4" Inline Duct Fan with Temperature and Humidity Controller

5.0 / 5.0

(2) 2 total reviews

Spider Farmer 4" Inline Duct Fan with Speed Controller

5.0 / 5.0

(1) 1 total reviews