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Honeywell ARD18

18" Automatic Round Damper

(3 Reviews)


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The Model ARD is a single blade damper contstructed with 24-gauge galvanized steel. The single blade design includes a gasketed seal for tight shut-off and can be installed on systems with up to 0.8" of static. The ARD can be installed in any rigid or flexible round duct system. The ARD comes power closed but can be easily field-converted to power open.


  • Galvanized steel.
  • Single-blade damper.
  • Shipped as power closed/spring return open damper, for use with Honeywell Zoning Systems.
  • Can be field-converted to power open/spring return closed damper when used as an independent zone or for fresh air intake.
  • Blade closes off tightly against gasket for minimal leakage.
  • Rated to operate up to 1 in. wc.

Wires to Motor
Duct Diameter

The interior diameter of the round duct.

Duct Diameter
18 inches
24 Volts
60 Hz

In 2002 Alpine Home Air Products became the first company to sell heating, air conditioning and indoor air-quality products online. We have proudly served hundreds of thousands of customers, helping them save time and money by buying their products direct.