In Stock - Ships in 1-2 business days
![](http://voomisupply.com/cdn/shop/files/secure_checkout_1_200x200.png?v=1664931444)
Secure
Ordering
![](http://voomisupply.com/cdn/shop/files/30_Day_200x200.png?v=1664931444)
Easy
Returns
![](http://voomisupply.com/cdn/shop/files/fit_guarantee_70b1b819-4924-4d08-a73c-7c6406bd9889_200x200.png?v=1664931444)
100% Fit
Guarantee
![](http://voomisupply.com/cdn/shop/files/customer_service_d0971d9c-4e00-470c-a78b-5d4e2203a278_200x200.png?v=1664931444)
Expert
Advice
![](http://voomisupply.com/cdn/shop/files/fast_shipping_e91320ba-a933-4ed1-a9c6-1d1121f83579_200x200.png?v=1664931444)
Fast
Shipping
Product Information
Product Description
The Hart & Cooley 128 Round Butterfly Damper is designed to control and adjust air flow seamlessly within HVAC systems. Perfectly matching the No 16 Diffuser, this damper is crafted from high-quality cold rolled steel and measures an outer diameter of 9-1/2 inches.
- Seamlessly controls air volume across the diffuser.
- Features a removable knob for easy adjustment from fully closed to fully open positions.
- Designed for easy attachment while maintaining diffuser position with its knob.
Product Highlights
This butterfly damper is essential for efficient air volume control in heating, ventilation, and air conditioning systems.
Product Information
Standard Information
- Manufacturer: Hart & Cooley
- Material: Cold Rolled Steel
- Finish: Golden Sand Enamel
Technical Specifications
- Type: Round
- Depth: 4-11/16 Inch
- Diameter: 9-1/2 Inch OD
- Vent/Duct Size: 8 Inch
- Suitable For Use With: No 16 Diffuser
Manuals
What Our Customers Are Saying
Thank you for having all these small crazy little parts! I can only imagine the organization of all of this! You are appreciated!
-Kimberly Erhart
Love this website, prompt call back and had the necessary information that I was inquiring about. And had the part as well.
-John Crowe
I found exactly what I needed to replace the compressor of my home HVAC unit, thank you for your service and I will definitely do business with your company again.
-Valerio Tigno
So far so good! Customer service great and site is very well laid out and easy to use. So far every part I've needed has been i stock. Thanks Voomi.
-Casey Conrad
Glad I found your website. Saved a bunch of money on this order and will use again in future for my HVAC business.
-Gary Zitzmann