Suncourt Inductor 4 in. In-Line Duct Fan-DB204 - The Home Depot


Model # DB204

Internet # 100073963

Store SKU # 113946

Inductor 4 in. In-Line Duct Fan

Suncourt Inductor 4 in. In-Line Duct Fan

This item has been discontinued.
The Home Depot no longer carries this specific product.

$27.00 / each
  • Crimp and bead on both ends for an easy installation
  • Motor has large oil reservoir for long lasting, quiet life
  • Designed to fit 4 in. flexible and rigid ducts


Model # DB204

Internet # 100073963

Store SKU # 113946

Store SO SKU # 655047

The Inductor 4 in. In-Line Duct Fan is an energy efficient way to help circulate heated or cooled air around a room. This duct booster fan is designed to be installed in almost any position in your home or office duct work. This duct fan has a crimp and bead design on both ends for an easy installment. It can fit 4 in. flexible or rigid ducts. This duct fan has a thermally protected Class B motor with large oil reservoir.

  • Made of corrosion-resistant metal
  • Energy efficient way to improve comfort by circulating heated or cooled around a room
  • Can be installed in almost any position in your home or office duct work
  • Thermally protected Class B motor
  • 65 CFM free air and max boosted 80 CFM
  • Includes installment screws
  • ETL (C/US) Listed
  • Tested to ANSI/UL standard 705 & CSA 22.2

Info & Guides

You will need Adobe® Acrobat® Reader to view PDF documents. Download a free copy from the Adobe Web site.


Assembled Depth (in.)  4 in  Assembled Height (in.)  6 in 
Assembled Width (in.)  4 in  Product Depth (in.) 
Product Height (in.)  6.0  Product Width (in.) 
Brand/Model Compatibility  DuctStat, Suncourt  HVAC application  All HVAC types 
Product Weight (lb.)  1.5 lb  Returnable  90-Day 
Warranty / Certifications
Manufacturer Warranty  1 year limited 


Rated 3.7 out of 5 by 27 reviewers.
Rated 4 out of 5 by good if you don't mind the noise This fan moved the air fairly well, but was to loud for my application. December 10, 2014
Rated 2 out of 5 by Ok Moves air, but very little. Kind of loud for the amount of air it moves. October 8, 2014
Rated 5 out of 5 by works just as expected This 4" in-line booster works just as it should for my 80 cf garden veg box, it keeps a nice amount of air moving out, more than enough to create strong a passive intake and keep the plants blowing. However this is not an in-line vent it's a booster, it's meant to supplement a regular inline fan such as a unit by fantech,sun leaves, vortex, etc. The only reason it works on its own for me is that I have a small enough space, as long as you remember that this unit is meant to be supplemental or can do the math for ventilation CFM requirements you'll be fine and pleased. The same goes for the 6 & 8 inch version as well, use as intended and don't expect a $30 booster van to vent a attic/room/crawl space when it would take a $200+ unit pushing a few hundred to a thousand CFM to do the job properly. August 11, 2010
Rated 5 out of 5 by Awesome fan for cat's litter boxes! This is a great stink away product! I moved in town house 4 years ago with 4 cats. In the basement made a toilet room out of the closet. Very quickly 4 cats and 2 litter boxes stunk up all basement. I bought this wonder fan install it in a 4" flex hose and ran the hose to the hole I made in the house right above the ground behind the bushes. This fan is been on 24/7 since then (4 years!) and there is absolutely no smell in the basement. I will buy another fan soon just in case the old one quits. It is a definetly mericle fan, very quiet, slow speed, but gets rid of all the stink from the closet! Awesom little bugger! February 27, 2011
Rated 3 out of 5 by 4 in. In-Line Duct Fan This is a bit pre-mature for this review, but the reason for that is the instructions say to add an inline 15amp fuse which it did not include. Wow, a 50 cent fuse, they could not include. I live 20 miles away from Homedepot and now I have to wait untill I get a fuse now. Why couldn't they just include the fuse. It's like buying a new car without the keys. January 22, 2011
2 3 4 >>


Standard Shipping includes delivery by small parcel service. Processing time varies by product.

Orders for this item may be expedited for an additional fee.

Other Delivery Options:

Express and Expedited shipping options are also available. Estimated arrival times are available in checkout.

If product is eligible for shipping to AK, HI and US Territories additional transit time and remote surcharges may apply.