We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Rectangular galvanized steel fire damper, 11 by 23 inches, 22 gauge

Dayton

Dayton Rectangular Fire Damper 11-3/4x23-3/4 In hardware

SKU CH-V7JW-24M06

Rectangular fire damper measuring 11 by 23 inches, built from 22-gauge galvanised steel with a static fire-resistance rating under three hours

  • TypeStatic With Fire Resistance Rating Less Than 3 Hou
  • Rectangular design fits 11-3/4 by 23-3/4 inch openings
  • Static fire damper rated for less than three hours resistance
  • 22 gauge galvanised steel construction provides durable airflow control
  • Allows bidirectional airflow for flexible duct installation
  • No state sales restrictions apply to this model

Dayton Rectangular Fire Damper 11-3/4x23-3/4 In

This Dayton rectangular fire damper measures 11-3/4 by 23-3/4 inches and provides a static fire resistance rating of less than three hours. It is intended for HVAC professionals and building contractors who need to maintain compartmentation in ductwork penetrations through fire-rated barriers. The unit accommodates airflow in either direction.

Installation uses 22 ga galvanized steel

The damper body is fabricated from 22 gauge galvanized steel, which keeps the assembly rigid enough for standard duct connections while remaining light enough for a single installer to handle. Common issues include forgetting to verify the fire rating requirement for the specific barrier, neglecting to seal the perimeter with approved fire-stop materials, and mounting the frame out of square so the blades bind.

Check duct dimensions

Confirm that the duct opening matches the 11-3/4 by 23-3/4 inch frame size exactly, as field modifications can void the fire resistance rating. Verify that the local code accepts a static damper rated for less than three hours for the intended wall or floor assembly. Ensure the galvanised steel material is compatible with the surrounding ductwork and any required fire-stopping system.

Highlights

  • Rectangular design fits 11-3/4 by 23-3/4 inch openings
  • Static fire damper rated for less than three hours resistance
  • 22 gauge galvanised steel construction provides durable airflow control
  • Allows bidirectional airflow for flexible duct installation
  • No state sales restrictions apply to this model

Specifications

BrandDAYTON
TypeStatic With Fire Resistance Rating Less Than 3 Hou

Questions about this item

How can I verify the damper operates correctly after installation?

Check that the blades move freely and close fully when the fusible link activates, confirming the static fire resistance rating under 3 hours functions as designed.

What components are included and what must I supply?

The damper ships as a 22 ga. galvanized steel unit measuring 11-3/4 by 23-3/4 in; mounting hardware, duct connections and any required actuators are not included.

Which size should I select for my duct opening?

Choose the 11-3/4 by 23-3/4 in rectangular model to match a duct of those exact dimensions.

More in Misc Hardware

Similar items

Same shelf, same checkout — eight coins and a 30-minute rate lock.