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OUR PRODUCT GUARANTEE
FAMCO prides itself on Quality Built Products manufactured from quality raw materials. All products are guaranteed to be free of defective material or workmanship for a period of one year from the date of delivery. During the guarantee period, if any parts prove defective, they will be replaced free of charge. Please click here to review a complete version of our limited warranty.
Bob –
4″ Butterfly damper perfect for “supply air”
We use these when sealing a crawlspace or attic. As an insulation contractor, we use spray foam to encapsulate & insulate these areas for homeowners. The 4″ damper is inserted into an HVAC supply plenum, so that the HVAC conditions the area, and aids in the control of high RH.
Sheila –
Excellent quality and service
FAMCO has excellent customer service and their product is always exactly as stated. Our company has ordered several of the 6″ dampers and they work perfectly.
Sheila Lenz –
Butterfly Backdraft Damper
This is a very good product. It is made to specifics and is exactly as stated.
We are doing a fairly large industrial project and have purchased several of these this year. We have had no problem with this product.
lvmopt –
Excellent 4 inch backdraft vent
This item fits well and does its job. Very happy.
Leonard Ford (verified owner) –
Works nice.
Amrish Patel (verified owner) –
keven nguyen (verified owner) –
Item is well built and sturdy. I’m using this to built a whole house fan. Shipping was fast too! I would recommend buying from FAMCO.
Stephen E. (verified owner) –
I haven’t installed it yet but it looks great
Well constructed and operates very smoothly
Great communication letting me know as things happen and very fast service
R ALLEN (verified owner) –
Built and shipped quickly. Plenty of email notices to keep me updated. Thanks!
Blaise M. (verified owner) –
Excellent product. Easy to install.
Anonymous (verified owner) –
Very well made. Would buy it again
steve s. (verified owner) –
good price quality and fast shipping
Daniel S. (verified owner) –
Product works as designed.
Steve Morley (verified owner) –
Well built, on time delivery. I like these products. Better than the local products.
John B. (verified owner) –
Steven (verified owner) –
Scott MCCALL (verified owner) –
Excellent product and service!!
James (verified owner) –
Solved backdraft problem with the air return. Quality product.
John H. (verified owner) –
I received the wrong size when it was first shipped to me. The packing slip said it was the size I ordered but what came in the box was the wrong size. I called and they sent the correct size by overnight freight.
BELINDA DYSON (verified owner) –
Anonymous (verified owner) –
Anonymous (verified owner) –
Opens on lowest fan setting. Seals completely.
William (verified owner) –
quality looks very good, delivery was good
John Garbarino (verified owner) –
Dale B. (verified owner) –
Jordan H. (verified owner) –
Very easy to order from. Good packing. Nice damper.
Brooks (verified owner) –
I got just what I wanted. Thanks.
Anonymous (verified owner) –
Michael L. (verified owner) –
Carl Gothan (verified owner) –
Best service ever
Gregory (verified owner) –
Perfect. The item was as described and works great.
Jorge Vásquez (verified owner) –
Steve (verified owner) –
Very impressed with the damper. Installed it between sections of the vent piping for a new range hood. Seems well designed, does an excellent job preventing back drafts, and creates little if any additional noise when the range hood fan is running.
DAVID CONNOLLY (verified owner) –
worked perfectly thank you
Anonymous (verified owner) –
Fast shipping nice customer support
BELINDA D. (verified owner) –
Terrific product. Flawless service.
Anonymous (verified owner) –
Eugene Williams (verified owner) –
Anonymous (verified owner) –
Andy S. (verified owner) –
nicely made!
Barry (verified owner) –
Thomas O’Rourke (verified owner) –
Like that it’s made in USA, quality work and very good packaging.
William Minnick (verified owner) –
Anonymous (verified owner) –
Anonymous (verified owner) –
Nice service and good prices, Thanks.
MEHUL B. (verified owner) –
Robbin Short (verified owner) –
very nice product, fits like it should and works great, I would buy from them again!
Chris N. (verified owner) –
Exactly what I was looking for and works perfectly. Very pleased
Martin E. (verified owner) –
Tommy Taylor (verified owner) –
vachon alain (verified owner) –
excellent
Anonymous (verified owner) –
Thomas P. (verified owner) –
Timothy B. (verified owner) –
Kim Williams (verified owner) –
These are exactly what we needed to stop back flow from the house furnace and air conditioner to our outside wood burning stove.
David V. (verified owner) –
Greg F. (verified owner) –
Good quality and works perfect, Easy install.
James K Armstrong (verified owner) –
Looked like great quality and will do exactly what I need.
Vince K. (verified owner) –
Works as advertised
Tong Ginn (verified owner) –
I had tried another damper but the fluting did the trick for me.
Richard (verified owner) –
Sheila Lenz (verified owner) –
Always on time. Always quality. Our #1 vendor for venting.
Jordan H. (verified owner) –
Super good quality!
Anonymous (verified owner) –
I was very pleased that FAMCO would make this damper in the unusual size I needed, but…..
The foam strip that seals the flap was installed crooked so that there was a 3mm gap on nearly half the circumference. I had to rebuild this with new foam, but suboptimal performance because I didn’t really have the right foam for this.
In addition, the cloth tape that is used to form the butterfly hinge was improperly trimmed so that it rubbed against the inside of the metal tube and one flap didn’t close all the way. This was easy to fix by trimming with a razor, but still I’d expect better — if I hadn’t been fiddling with this area to fix the foam issue, I probably would have installed this damper without noticing and the client would have had a lifetime of leaks without knowing why.
Kavan Martin (store manager) –
Thank you for the review! I have forwarded your review to our team so we can look into this quality concern.
Michael (verified owner) –
It’s made to perfection!
Wes Hines (verified owner) –
Thomas K. (verified owner) –
far better quality than avail in big box stores
Mickey (verified owner) –