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Handua Plastic Key - Handle for Butterfly Damper

Based on 117 reviews
Condition: New
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$7.29
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Availability: In Stock.
Fulfilled by Amazon

Arrives Tuesday, Nov 10
Order within 3 hours and 46 minutes

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At a glance

Condition
New
Size
1 Pack
Weight
0.634 oz
Color
White
Material
Plastic

Features 5

  • Versatile Damper Compatibility: This plastic key is designed to adjust butterfly dampers of 6, 8, 10, and 12-inch sizes, making it compatible with a wide range of round ceiling diffusers.
  • Seamless Airflow Control: Whether you have a 6-inch, 8-inch, 10-inch, or 12-inch damper, this key provides a seamless means of adjusting airflow to suit your specific ventilation requirements.
  • User-Friendly Operation: The key's intuitive design ensures that users of all experience levels can easily adjust dampers for optimal airflow.
  • Built to Last: Constructed from durable plastic, this key is built to withstand regular use and maintain its performance, regardless of the damper size.

Description

Plastic Key - Handle for Butterfly Damper Versatile Damper Compatibility: This plastic key is designed to adjust butterfly dampers of 6, 8, 10, and 12-inch sizes, making it compatible with a wide range of round ceiling diffusers. Seamless Airflow Control: Whether you have a 6-inch, 8-inch, 10-inch, or 12-inch damper, this key provides a seamless means of adjusting airflow to suit your specific ventilation requirements. User-Friendly Operation: The key's intuitive design ensures that users of all experience levels can easily adjust dampers for optimal airflow. Built to Last: Constructed from durable plastic, this key is built to withstand regular use and maintain its performance, regardless of the damper size. Universal Ventilation Solution: With its compatibility across various damper sizes, the Handua Plastic Key is a versatile tool suitable for a wide range of round ceiling diffusers.

Specs 7

Manufacturer Handua
Item Weight 0.634 ounces
Package Dimensions 7.01 x 4.96 x 0.63 inches
Size 1 Pack
Color White
Material Plastic
Item Package Quantity 1

Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Nov 10

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


Perfect
Size Name: 2 Pack
This item is a great replacement for originals. No issues and works perfect
Reviewed in the United States on December 17, 2025 by Nanci

Perfect for older applications
Size Name: 5 Pack
Worked perfect for a 1980's condo with original round ceiling vents.
Reviewed in the United States on October 2, 2025 by HD Roadglide 114

Works
Size Name: 3 Pack
Works fine. Gets a little stuck sometimes, but it turns the vent open and shut.
Reviewed in the United States on June 12, 2026 by Fletch

Poor design
Size Name: 10 Pack
While this design does fit up inside my damper it was a weird plactic tab that breaks off once that portion is inserted. This allows the part to fall back out and not stay in the damper. Waste of money. They should be designed with a taper so they will stay once inserted.
Reviewed in the United States on August 17, 2026 by Andrew Dial

Butterfly Damper Handles Replaced
Size Name: 3 Pack
I never looked for the handles for my Butterfly Dampers until I wanted to repair the heat runs in the basement so I looked on Amazon website and found what I was looking for. Ordered the Butterfly Damper Handles and made a few adjustments for my unit and installed them and now I can close the damper down when needed thank you. ... show more
Reviewed in the United States on August 21, 2026 by Mr. Dewayne K. Scott

Be carefull they are plastic
Size Name: 2 Pack
It worked as it should
Reviewed in the United States on February 9, 2026 by Carl christensen

Vent keys
Size Name: 2 Pack
Worked as advertised
Reviewed in the United States on November 27, 2025 by Julio Gomez

Buy the tool!
Size Name: 1 Pack
Sometimes it is just best to buy the specialty tool made for the job. I only use this about two days a year but when I adjust the dampers for winter and summer it is SO much easier with this. Absolutely worth the small amount of money and space in the junk drawer.
Reviewed in the United States on November 22, 2024 by Jonathan D. Mann
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