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12" DURAFAN® Select Speed Shutter Fans

, SF12C3
QC Supply Part #: 10404
Shipping: Standard
Availability: In stock

This economical and versatile fan is easy to install - simply mount it and plug it in.

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DURAFAN® Select Speed Exhaust Fans are economical and versatile. The totally enclosed motor comes complete with built-in speed switches and a 9' cord.

No electrician is required to install these fans — just mount the fan in the wall and plug it into an approved receptacle. The corrosion-resistant aluminum shutter comes complete with a tie bar to reduce shutter flapping and keeps the shutters closed when the fan is not running. The balanced aluminum blade is protected by a strong, chrome-plated OSHA grill on the intake side.


  • Designed for agricultural and horticultural applications, factories, warehouses, garages, attics and restaurants
  • Remove and control unwanted condensation
  • Exhaust obnoxious fumes
  • Exhaust excessive heat
  • Improve inside air quality

Features & Benefits:

  • Totally assembled
  • No electrician required when plugged into an approved electrical outlet
  • Built-in speed switch with attached 9' cord
  • Totally enclosed, maintenance-free motor
  • Corrosion-resistant aluminum shutter with tie bar to reduce shutter flapping and opening on windy days
  • Safety chrome grill on intake side meets OSHA standards
  • Fan must be mounted 7' above ground level on the exhaust side

Available in 4 Sizes:

  • #10404 — 12"
  • #10405 — 16"
  • #10406 — 20"
  • #10407 — 24"


10404, 10405, 10406 & 10407
18 7/8" 22 7/8" 27"
2" 2" 2" 2"
1 1/2" 1 1/2" 1 1/2" 1 1/2"
9 1/8" 9 1/8" 9 3/4" 13 1/2"

A - Overall outside to outside
B - Depth of shutter
C - Width of flange
D - Depth from front of shutter to back of motor

Item #SizeHPSpeedVoltsAmpsRPMCFMRough
WeightShips Via
10404 12" 1/30 3 115 1.1
1500/1350/1200 1,100/850/550
12.5" x 12.5" 16 lbs. UPS
10405 16" 1/10 3 115 1.5 1570/1400/1000 2,950/2,050/1,200 16.5" x 16.5" 20 lbs. UPS
10406 20" 1/10 3 115 1.5 1570/1400/1000 4,220/3,250/2,130 20.5" x 20.5" 27 lbs. UPS
10407 24" 1/8 2 115 1.8 1400/1000 5,850/3,475 24.5" x 24.5" 33 lbs. UPS
Brand Durafan
Manufacturer Part Number SF12C3
Fan Size 12"
Fan Type Shutter

Customer Reviews

  • 5 Stars

    Quality product, but

    Review by on Mar 13, 2017

    Quality product, competive price, great service. I wanted to install this fan in a 10" wide block wall and mount the fan directly on the outside wall. If this is your plan, please keep reading. After breaking through the wall using the dimensions provided, I discovered the safety cage is larger than the mounting surface of the shutter. If this is your plan, you will need a larger opening and fabricate a box inside the wall to facilitate this plan.

  • 5 Stars

    great unit

    Review by on Jan 17, 2017

    quick shipping, easy install it fit between the wall studs no modifications needed.
    May order another for incoming air.

  • 5 Stars

    Great Customer Service

    Review by on Nov 7, 2016

    The day after I ordered this, I had to order a bigger fan instead. This one had already shipped so it couldn't be cancelled. I delayed 2 days past the 30-days Return date, and figured I was out of luck. I emailed and she said no problem, and as soon as they received back the first fan I ordered, she credited the money back to me. Not only that, but the credit card I had purchased it on, had been replaced, so she couldn't credit it. She called and asked for the new card #, then credited it. Going the extra mile. Thanks.

  • 5 Stars


    Review by on Nov 3, 2016

    I Bought this to move a lot of air through my 6x6 outdoor emergency generator enclosure while it's running. Checking the temp inside with the generator running at full load it never gets over 80 degrees with this fan running on high speed. I couldn't be more pleased with the results i've gotten!

  • 5 Stars

    Great Product

    Review by on Sep 29, 2016

    Great value, reasonable pricing, good construction. Easy to install

  • 5 Stars

    Great transaction

    Review by on Sep 21, 2016

    I received the fan very quickly, packed well, and was exactly what I expected. Thanks.

  • 5 Stars

    What it says it is!

    Review by on Aug 31, 2016

    I have a small 10' x 12' ROR observatory, needed something to bring inside temps more to ambient a couple of hours before going out to use the telescopes. This vent fan does the trick nicely, very easy install, easy to just turn it off and unplug it when the roof is ready to be rolled off for observing the night skies and it has finished its job of balancing the temperatures!

  • 5 Stars

    Good fan, easy to install

    Review by on Aug 8, 2016

    The quality of the fan is good and the motor seems strong. This unit moves air very well.

  • 4 Stars

    Good product...

    Review by on Jul 28, 2016

    Product arrived fast and just as described. Though the fan was packed really well, a couple of the louvres managed to get dented. The fan noise is as expected....not overly loud, but definitely know that it is on. When the fan is not on, the louvres do not close back all the way. I'm hoping that they just need a little break-in period.

  • 5 Stars

    great product for the money

    Review by on Dec 28, 2015

    Just what we needed for our aquaponic garden. 20 X 26 foot building. we also purchased a thermostat and propane heater.

  • 4 Stars

    Good product

    Review by on Nov 5, 2015

    I just installed this a couple of days ago, but so far all seems to work well. The instalation was extremely easy and quick.

  • 5 Stars

    Best value for your money.

    Review by on Oct 29, 2015

    Looks well built. easy to install. Really like the 3 speed function. Plug makes it easy. Looks like one of the better values for your money available today.

  • 5 Stars

    Good fan for the money

    Review by on Oct 10, 2015

    Very nice, like three speeds, fast services

  • 4 Stars

    Nice fan,Thank you the best services.

    Review by on May 8, 2015

    Nice fan,Thank you the best services.

  • 4 Stars

    Very nice, easy install, quiet.

    Review by on May 7, 2015

    Other than being back ordered for several weeks, I'm very happy with the fan now that I have it installed and running. The 3 speed function is great, having a plug in cord is very convenient, it moves a lot of air, the shutters work great, very sturdy construction, and it is quiet. I've only had it running for 2 days in my greenhouse and does the job moving out the hot air. If it continues to perform this way over the long haul it will definitely be rated a 5 star product. Thank you.

  • 5 Stars

    Fan review

    Review by on Jan 29, 2015

    Nice Fan, well constructed. I am using it for cooling in generator enclosure on a thermostat. It was exactly what I was looking for. It was great dealing with QC Supply. Fast shipping.

  • 4 Stars


    Review by on Aug 7, 2014

    it works good not what i wanting out of a fan should of got one with more cfm.

  • 5 Stars

    Cool Fan

    Review by on Jul 17, 2014

    Great Fan, It really moves the air in my shop! Install was easy Thanks!

  • 5 Stars

    Great Fans

    Review by on Jul 2, 2014

    I now have (2) 20's a 16" and a 12". I set them up in different configurations one is on a thermostat one is on a three way switch and the other two I wired to a switch plug. The first fan took a few hours to get perfect but the others took about an hour. Install took bracing the hole, cutting the hole, placing the fan and sealing the outside cut. The fans work great!

  • 4 Stars

    Good Fan

    Review by on Jun 19, 2014

    Nice fan for the money. Packaging needs improvement for shipping .

  • 4 Stars


    Review by on Jun 14, 2014

    This is a great deal and is prefect for what i was looking for. I use it in my two and half car garage, with the doors closed and the fan on i can really feel the air coming in though the vents in the door. Easy to install took about an hour.

  • 5 Stars

    Does the Job

    Review by on Apr 24, 2014

    Just installed, works great. Will use to vent paint fumes from garage as an auxiliary unit. Previous fan lasted 20 years, and by examining this one, expect it will do the same.

  • 5 Stars


    Review by on Apr 10, 2014

    Excellent product and is as advertised in product description.

  • 4 Stars

    Overall good - some minor issues

    Review by on Nov 15, 2013

    This is a generally solid fan with adequate power for the 300 square foot studio. The motor is quiet at the first two speeds (low-medium) but at high speed might be considered a bit noisy (the engineer at QC stated it had never been tested for noise level (db). Also, the instructions called for cutting a 12 1/2 inch square hole for exhaust from the building; however, this opening is almost too large for the metal template. I would recommend 12 1/8 inch.

  • 2 Stars

    Never been tested for noise level!!

    Review by on Nov 4, 2013

    Can you believe?!? -- never been "officially tested" for noise but willing to compete in the 'quiet' category of fan-dom.

    (Maybe somebody at QC could ask for a few tests to reassure those worried about the ever-increasing world of noise and growing hearing loss.)

  • 5 Stars

    Excellent fan!

    Review by on Oct 28, 2013

    I bought this fan for the milk house where I keep my rabbits. I love the 3 speed feature, how easy it was to install and it is very quiet.

  • 5 Stars

    Great buy !!!

    Review by on Oct 20, 2013

    Very well made product.. Its nice to see you can still get a great buy for your money... .I used it in my home built Aux generator shed and it keeps it extra cool in there. moves some good air.. the dampers are not wafer thin and razor sharp like other dampers on fans out there on the market again well made. happy buyer!!!!

  • 5 Stars

    Great fan!

    Review by on Sep 28, 2013

    My 12 inch fan works great. Easy to install and all 3 speeds run quietly. QC Supply got the fan to me very quickly and was easy to order from. I'd recommend this fan and QC Supply to anyone looking for a great exhaust fan.

  • 5 Stars

    Excellent Product and service

    Review by on Sep 9, 2013

    Excellent Product and service. Exactly what I expected and works to my satisfaction. Will use this company and product again.

  • 5 Stars

    Fast service

    Review by on Aug 8, 2013

    Good price, good service and works good Only in been in service two days. Looks like it was well built and should last a long time.

  • 4 Stars

    What I needed at best price

    Review by on Jul 28, 2013

    Need to vent exhaust from propane generator in shed. This fan works great- 3 speeds, A/C plug, shuttered and quiet.
    Measures 15" flange to flange so will have to cut studs in shed/garage if studs are 16' on center. I just cut out studs at opening and reinforced on opposite sides.

  • 4 Stars

    Super Fast shipping

    Review by on Jul 25, 2013

    Shipping was super fast. Fan works as described but only have been using for 2 days.

  • 5 Stars


    Review by on Jul 22, 2013

    I was looking for fan to rid the hot temps in my 2-car garage(80+), but something that was not noisy nor bulky. BAM! there it was, DURAFAN.
    I talked to Brad, sales guy, and helped me out along with the thermostat to go along with it. Great customer service with these guys.
    One change to think of is maybe being able to hard wire the fan to the thermostat?
    Great fan!! Thank You Brad

  • 5 Stars

    nice fan works well and quiet

    Review by on Jul 6, 2013

    Bought fan to cool small hen house, hooked up a thermostat and were running

  • 5 Stars

    Easy to install and quiet.

    Review by on Jun 8, 2013

    This arrived quickly, was simple to install and operates well.

  • 5 Stars

    nice fan

    Review by on May 31, 2013

    have not used it quite yet. It appears to be a very nice fan. 3 speeds are nice and it runs quite. Fast shipping! thanks!

  • 5 Stars

    Would happily recommend

    Review by on Mar 18, 2013

    The fan meets all expectations for good performance and dependability.

  • 5 Stars

    great company.

    Review by on Mar 14, 2013

    I love it. your service was excellent. the fan was an easy install, quiet. i am a happy camper.

  • 5 Stars

    Excellent product

    Review by on Mar 8, 2013

    While I have just installed the fan and used it only once, I am very happy with it. Its quiet, the shutter works great and it appears to have the advertised CFM.

  • 5 Stars

    fast shipping on this hard-to-find item

    Review by on Nov 29, 2012

    This fan was exactly what I was looking for. Nobody locally had anything even close....not Home Depot, not Lowe's.....nobody. The price seemed OK. The shipping was really fast. If I need something like this again, I now know to check QC Supply FIRST and save myself some time and running around.

  • 5 Stars

    Best i could find on the web

    Review by on Jul 13, 2012

    Well made product. Easy to install. Louvers pivot on "nylon" bushings not just metal to metal therefore open very easilly. Good buy!

  • 5 Stars

    A Great Shed Fan

    Review by on Feb 29, 2012

    This is a very solid, well constructed fan. It's quiet even at full speed. I bought the 10919 portable cooling thermostat to control it and they're a perfect match.

  • 5 Stars

    Great Great Great

    Review by on Oct 9, 2011

    Bought this fan to vent my Garage because my husband smokes, this is great i do not smell no smoke at all in the house nor the garage when you walk out there. Great Buy, Thanks!

  • 5 Stars

    Great Fan!!

    Review by on Oct 6, 2011

    Bought this to ventilate my shed. Will be running my generator inside it during power outages. Installation went well and fan operates well. Exactly what I was looking for.

  • 5 Stars

    good fan at a great price

    Review by on Sep 30, 2011

    Very nice fan, works well, using it to vent a storage shed for a gasoline generator, will know more once I lose power.

  • 5 Stars

    The End Of Global Warming

    Review by on Aug 10, 2011

    Dropped temperatures dramatically in hen house. Worked so well the global temps dropped significantly!

  • 5 Stars


    Review by on Mar 24, 2011

    This fan is excellent powerful and quiet keep up the good work

  • 5 Stars


    Review by on Mar 16, 2011

    excellent fan 12" shutters and a switch. delivery faster than a speeding bullet.i wish all businesses could be like these guys !!!

  • 5 Stars

    Great fan

    Review by on Mar 4, 2011

    This is a really good fan for your money bought this to vent out my sunroom when it is hot inside. This fan is quiet on low speed and has very low power consumption.

  • 5 Stars

    Excellent fan for price

    Review by on Mar 4, 2011

    This fan is excellent! quiet, reliable, and low operating cost. This fan has held up in some bad rain storms without leaking. Overall great fan would buy another if needed

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