4" Ventilation Kits and Fans

4" Air Filtration Kit An air filtration kit with everything you need to cool, ventilate, and control odors in your grow space. Features the CLOUDL...

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...

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 A4, QUIET INLINE FAN WITH SPEED CONTROLLER, 4-INCH This inline fan system packs the CLOUDLINE’s core innovations and premium build qualit...

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

NOISE REDUCTION CLAMP, DUCT COUPLER WITH STAINLESS STEEL CLAMPS, 4-INCH A rubber clamp designed to connect duct ports with a secure and airtight...

FLEXIBLE FOUR-LAYER DUCTING, 8-FT LONG, 4-INCH This ducting is designed for various ventilation, circulation, and heating/cooling transfer applicat...

FLEXIBLE FOUR-LAYER DUCTING, 25-FT LONG, 4-INCH This ducting is designed for various ventilation, circulation, and heating/cooling transfer applica...

AIR FILTER BOX WITH HIGH EFFICACY FILTER, 4-INCH A whole-house air filtration system designed for use with inline duct fans such as the CLOUDLINE S...

STAINLESS STEEL DUCT CLAMPS, 4-INCH, TWO PACK This duct clamp is designed to secure various ducting components together. It features a heavy-dut...

CLOUDLINE H4, Inline Fan with Speed Controller for Fungiculture, IP-65 Rated, 4-Inch An inline duct fan specially designed for mushroom cultivation...