Top 10 Inline Duct Fan 4 – Home Air Purifiers

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VIVOSUN 4 Inch 203 CFM Inline Duct Fan Vent Blower Ventilation Fan for Grow Tent ETL Certified

VIVOSUN #ad - Notice: Without speed controller. Moves air through your target location efficiently for optimal ventilation. Versatile applications: ideal for cooling lighting fixtures or controlling hot and humid conditions in grow tents/rooms.

Powerful air flow: heavy hitting blower with a fan speed of 2500 RPM for an air flow of 203 CFM. High tech design: the aerodynamically designed centrifugal impeller of this unit delivers strong air flow with a disproportionately low sound profile. Durable build: galvanized steel parts come factory painted to resist atmospheric corrosion from humidity. Tight, precise construction eliminates rattling and reduces wear and tear to give the element a long life. Runs smooth and quiet: Powerful fan puts out only 49 dB noise level.
BrandVIVOSUN #ad
ManufacturerVIVOSUN #ad
Weight7.73 Pounds
Part Number306301-4



VIVOSUN 4 Inch 203 CFM Inline Duct Fan with 4"x 14" Carbon Filter Smelliness Control with Australia Virgin Charcoal

VIVOSUN #ad - Moves air through your target location efficiently for optimal ventilation. Dimensions: 4" x 14". Versatile applications: Kitchens, Grow Tents, Grow Rooms, Bathrooms, etc.

Powerful air flow fan: heavy hitting blower with a fan speed of 2500 RPM; Puts out only 49 dB noise level. Superior carbon filter: 1050+ rc 48 australian Virgin Charcoal Bed. Free pre-filter included: We recommend replace the pre-filter every 6 months or after completion of each grow cycle. Effective smelliness control: the carbon filter eliminates some of the most undesirable smelliness, pungent smell and particulates from indoor grow tent, hydroponics grow room.
BrandVIVOSUN #ad
ManufacturerVIVOSUN #ad
Weight8.33 Pounds



VIVOSUN 4 Inch Noise Reducer Silencer for Inline Duct Fan

VIVOSUN #ad - Application: perfect for reducing noise from fans and carbon filter systems. Unique design: specially designed open cell foam with egg crate pattern is good for superior sound absorption. Premium material: commercial grade neoprene foam can reduce fan noise by approximately 35%-50%. Easy connection: Easy to connect to the air power equipment. Efficient blocking: Stop the spread of sound waves and allow airflow to get through the ducting.
BrandVIVOSUN #ad
ManufacturerVIVOSUN #ad

4. Deflecto


Deflecto Duct Increaser and Reducer, White, Plastic Inline Adapter, 4” to 3” IRB43

Deflecto #ad - Durable polypropylene construction has a melting point of approximately 325 degrees. Connects a 4 inch dryer exhaust hood to a 3 inch duct. Designed to transition between 4" and 3" diameter ducts. Ideal for bathroom fan installations. Simply slip the ducts over the increaser/reducer, tightening in place with clamps not included.
BrandDeflecto #ad
ManufacturerDeflecto #ad
Height4 Inches
Length4 Inches
Weight0.1 Pounds
Width3.4 Inches
Part NumberDEFIRB43
WarrantyDeflecto Duct Plastic Increaser and Reducer, 4" to a 3", (IRB43)

5. Hydrofarm


Green, Hydrofarm Active Air 4 inch in-Line 165 CFM Fan

Hydrofarm #ad - Active air inline Duct fans offer innovation & performance at a great price. Active air inline duct fans incorporate Brushless thermally protected AC motors with sealed for life bearings will not require any lubrication. With a full line of fans to meet your needs, high quality molded impeller, all Active Air Fans feature: Durable ceramic-coated metal housing, Low noise output, UL-recognized components, Includes mounting brackets and 8 foot pre-wired 120V cord.
BrandHydrofarm #ad
ManufacturerHydrofarm #ad
Height11.2 Inches
Length11.2 Inches
Weight9.3 Pounds
Width9 Inches
Part NumberACDF4
Warranty1 year manufacturer.

6. HG Power


HG Power 4 Inch Air Carbon Filter Odor Control with 38mm Australia Activated Charcoal Filter for Inline Duct Fan, Hydroponics, Odor Scrubber Silver, Grow Tent

HG Power #ad - We will reply immediately in 24 hours. Absorbs odors from pets and smoking as well. Reversible flange and base intended for extended service life, up to 2 years in life expectancy.

This air carbon filter suits for indoor grow operations to bathrooms, basements, plants grow tents and kitchens. Resisting chemical irritants and eliminates odors. What you get: the hg power products has modern design and good looking. 38mm carbon layer of thickness for higher absorption and performance. We have worriless 12-month and friendly customer service. If there exist any problems, please feel free to contact us. The air carbon purifier will soak up and eliminate some of the most undesirable odors and additional harmful and potentially ill-fating chemicals in the air.
BrandHG Power #ad
ManufacturerHG POWER #ad
Part NumberPH

7. Phat


4" Inline Jetfan with Speed Control, 160 CFM.

Phat #ad - Etl-certified. Fan is made of solid metal. Highest cfm per watt, maximum power usage at 18 watts. Hghly efficient, vibration free operation. Electronic speed controllable motor.
BrandPhat #ad
Height8.66 Inches
Length9.06 Inches
Width9.06 Inches
Part NumberJETFAN 100mm

8. AC Infinity


And Timer Controls, Smart Bluetooth Fan Controller with Temperature, AC Infinity Controller 67, Humidity, for CLOUDLINE Airlift CLOUDRAY Cooling and Ventilation

AC Infinity #ad - A digital controller designed to equip AC Infinity fans with smart controls for HVAC or growing applications. Programming includes auto triggers, scheduling, minimum speed, timers, cycles, and custom transitions. Connect with our app via Bluetooth to unlock advance programs, set notifications, and view climate data. Dynamically adjusts fan speed based on temperature and humidity conditions to produce optimal airflow. Supports up to two cloudline, airlift or clouDRAY fans with EC motors to share the same programming.
BrandAC Infinity #ad
ManufacturerAC Infinity #ad
Height2.75 Inches
Length4.25 Inches
Width1 Inches
Part NumberCTR67A

9. iPower


IPower 4 Inch Replacement Pre-Filter for 4" Carbon Filter

iPower #ad - A replica of the pre-filter that came with carbon filter original purchase. This prefilter fits for iPower 4inch carbon filter. Size: 10 x 24 inch, prefilters are measured as flange size x length. Recommended replace every 6 months to protect your filter. Material: polyester; comes in a sealed package. It to protect carbon filter from hair, dust, and other debris.
BrandiPower #ad
ManufactureriPower #ad
Height2.2 Inches
Length6.3 Inches
Width5.5 Inches

10. DHS


DHS Air Purifier Filter True HEPA Active Carbon Replacement Filter, SHD

DHS #ad - If you has purchased sHD air purifier, please choose our genuine replacement filter for the best performance. Air filter needs to be replaced every 4-6 months depending on the use of your air purifier. The hepa filter layer traps airborne particles as small as 03 microns. This filter can remove 99. 97% of air impurities, pollen, absorb dust, smell, particles, smoke. An active carbon layer absorbs contaminents and odors.
BrandDHS #ad
Height0.8 Inches
Length4.2 Inches
Weight1.77 Pounds
Width4.2 Inches