8" Neck Brown Steel butterfly damper, angled view
8" Neck Brown Steel butterfly damper, front view
8" Neck Brown Steel butterfly damper, front view 2
8" Neck Brown Steel butterfly damper, angled view 2
8" Neck Brown Steel butterfly damper, angled view 3
8" Neck Brown Steel butterfly damper, damper mechanism detail
8" Neck Brown Steel butterfly damper, damper mechanism detail 2
8" Neck Brown Steel butterfly damper, damper mechanism detail 3
8" Neck Brown Steel butterfly damper, angled view
8" Neck Brown Steel butterfly damper, front view
8" Neck Brown Steel butterfly damper, front view 2
8" Neck Brown Steel butterfly damper, angled view 2
8" Neck Brown Steel butterfly damper, angled view 3
8" Neck Brown Steel butterfly damper, damper mechanism detail
8" Neck Brown Steel butterfly damper, damper mechanism detail 2
8" Neck Brown Steel butterfly damper, damper mechanism detail 3

Item # 410202-2

8" Brown Steel Butterfly Damper for Round Ceiling Diffuser, Plastic Key Handle

$13.89
$0.00
$13.89
Order By Neck Size8" Neck
Bulk Pricing
2-1011-2021-4950+100+
$11.81$11.12$10.42$9.73
Subtotal:

Available Sizes & Options

See all Steel Butterfly Dampers →
8" Neck Brown Steel butterfly damper, angled view

8" Brown Steel Butterfly Damper for Round Ceiling Diffuser, Plastic Key Handle

$13.89
8" Neck Brown Steel butterfly damper, angled view
8" Neck Brown Steel butterfly damper, front view
8" Neck Brown Steel butterfly damper, front view 2
8" Neck Brown Steel butterfly damper, angled view 2
8" Neck Brown Steel butterfly damper, angled view 3
8" Neck Brown Steel butterfly damper, damper mechanism detail
8" Neck Brown Steel butterfly damper, damper mechanism detail 2
8" Neck Brown Steel butterfly damper, damper mechanism detail 3

8" Brown Steel Butterfly Damper for Round Ceiling Diffuser, Plastic Key Handle

$13.89
Description
Description
x

Product Overview

The 8" Neck brown steel butterfly damper carries air through the opening through a ceiling opening. Powder-coated steel resists dents and rust for years of use, a stronger choice than lightweight plastic covers. This butterfly damper adjusts or shuts the airflow, so comfort can be set room by room. Select this butterfly damper by its neck size size, not the overall face size, so it seats correctly on the first fit.

Key Features

  • Steel construction: Steel keeps the butterfly damper rigid during installation and resists warping over time.
  • Brown finish: The brown finish coordinates with common flooring, trim, and hardware.
  • Adjustable airflow: The built-in damper controls the volume of air (open to closed).
  • Right-fit sizing: Ordered by neck size, this butterfly damper matches standard duct dimensions and cuts wrong-size returns.

Dimensions and Specifications

Product type Butterfly Damper
Airflow function Airflow control
Nominal opening 8" Neck
Material Steel
Finish Brown
Mounting location Ceiling
Airflow control Adjustable damper
Order by Neck Size
Pack quantity 1
MPN 410202-2
Brand AirGrilles.com

Is This the Right Vent for Your Opening?

Choose this butterfly damper to regulate the supply airflow behind a round ceiling diffuser. It installs inside the duct or neck behind the diffuser, and the plastic key handle turns it from fully open to closed. This is an airflow-control damper, not a supply or return grille.

How to Measure for This Vent

Measure the round duct or collar the diffuser connects to and match it to the 8" Neck neck size above. Do not measure the outer panel.

Installation

Fit the butterfly damper into the round duct or neck behind the diffuser. Align it in the airway, then use the plastic key handle to open or close it to the airflow you want. No face screws are needed; the diffuser mounts over it.

What's Included

  • 1 x butterfly damper
  • 1 x plastic key handle
  • Mounting screws

Ductwork, wall anchors, and installation tools are not included.

Care and Maintenance

Clean the butterfly damper with a soft, damp cloth and mild soap. Avoid abrasive chemicals that can damage the brown finish. Dry the surface to keep moisture off the metal.

Compare Similar Options

Use this comparison to confirm the butterfly damper matches your opening and airflow need.

Option Best for Material Installation
This butterfly damper Airflow control behind a diffuser Steel In-duct
Round ceiling diffuser Round-neck ceiling supply Steel Ceiling
Adjustable supply register Supply with volume control Steel Wall or ceiling
Shipping & Return
Shipping & Return
x

Shipping

  • Free shipping over $250 (contiguous US). Otherwise calculated at checkout.
  • Order by 11:00 AM ET on a business day and it ships the same day — otherwise the next business day.
  • Delivery in about 4–5 days after dispatch (FedEx / UPS), with tracking emailed when your order ships.
  • US only. We cannot ship to P.O. boxes or APO/FPO addresses.

Returns

  • 30-day returns. Item must be unused and in its original packaging; opened packages incur a 20% restocking fee.
  • Start a return from your account or at help@airgrilles.com (authorization required). We email a prepaid return label and deduct return shipping from your refund (free if the return is our error); refunds are issued within 5 business days of approval.
  • Damaged, defective, wrong, or lost item? Tell us within 7 days with photos and your order number.

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