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Your cart is empty.HVAC manual damper knob white, designed for .25 Inch shaft dampers Handle diameter: 1.5 Inches Shaft Length 1 Inch includes handle 1/4 Inch shaft Size Plastic Construction Easy grab handle Easily operates the damper from open-to-close position for use with HVAC Ceiling Dampers & Round Duct Ring with Butterfly Damper Please note: The image displays two distinct viewing angles of the product for your reference and a more detailed look. The product is sold individually, and you will receive one unit, not both.SP: HVAC damper knob, damper knob, heating knob, vent knob, AC vent knob, heat knob, furnace knob, vent handle, damper handleUPC: 665570203277
Shirley Coulter
2025-09-01 11:07:26
I have been looking for replacement knobs for our ceiling air diverters and had been coming up empty. Diverters are 50+ years old. Reached out to an HVAC contractor and he shared these with me. They had the style of opening I needed. The openings are a little bigger than our posts, but we are going to make them work.
David Talley
2025-08-14 11:48:51
Fit ok and working well.
Theresa M Austin
2025-06-24 20:25:44
It didn't fit my house vents. It was too small then it was cheap plastic also.
Matt Sharayko
2025-05-21 10:20:26
My home was built in 1967 and the central air system was installed in the early 2000's. I have not been able to find replacement damper knobs for my register vents online anywhere. Maybe you could find them somewhere else but I wasn't about to waste time trying to find out.This is a 3D printed part made out of plastic resin via stereolithography (SLA) printing, which is a higher quality part in terms of tolerance and robustness as compared to cheaper fused deposition modeling (FDM) 3D printing.My only minor complaint is that the tolerance of the D-shape female end was a little too tight to fit on the male end of the damper shaft. I used WD-40 as lubrication to get the part to fit. Hopefully that doesn't damage the part as they are expensive for what they are.
Helen J. Noel
2025-04-12 19:57:53
Could not find original knobs but these knobs worked better easy to install and great appearance will buy again
Rodney Jones
2025-03-11 15:52:01
Was for hvac dampers. Kind of expensive, I bought multiple and can't use, the fitting is way to lose.Knobs seem ok, but the part where the shaft slides in is to big, and is made of plastic, seems like if it did fit it would eventually strip out, should have a metal insert
JB St Louis
2025-02-04 16:33:47
Very expensive for a replacement plastic knob. Easy to install though.
Jay
2025-01-08 16:53:53
The originals that I was replacing have a name on them and these I purchased are plain. But otherwise you couldn't tell the difference when looking up at the knob. And they are a good clear white and look perfect with the knew damper as well. I'm Very happy! I would buy these again, though I did my whole house so won't need to for years to come.