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Imperial 4 in. D Cast Iron Damper

Imperial 4 in. D Cast Iron Damper is a sturdy, non-adjustable damper built for reliable airflow control in chimney vent systems. Crafted from durable cast iron and finished in blac…

Imperial MPN BM0242 In Stock & Ready to Ship
Local Price Check i Local stores may price this as low as $5.99. Our online price is $6.99.
$6.99
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About Product Overview

Imperial 4 in. D Cast Iron Damper is a sturdy, non-adjustable damper built for reliable airflow control in chimney vent systems. Crafted from durable cast iron and finished in black, this 4 in. damper is designed to withstand high heat and frequent use while maintaining a clean, unobtrusive profile in your vent work.

  • Material and build: Cast iron construction provides excellent heat resistance and long service life.
  • Size and fit: 4 in. diameter for standard small-diameter vent runs.
  • Finish: Black finish blends with most existing chimney hardware and resists staining.
  • Safety and compliance: UL Listed, offering assurance of safety and compliance.
  • Configuration: Non-adjustable damper—designed for fixed installation and durable, permanent airflow control.
  • Packaging: Bulk packaging supports installers and wholesalers stocking up efficiently.

This Imperial damper is ideal for contractors, chimney sweeps, and hardware retailers who need a reliable, fixed-damper solution for 4 in. vent lines. Use cases include blocking drafts in seasonal fireplaces, maintaining steady airflow in fixed vent installs, or serving as a durable, low-maintenance component in streamlined chimney assemblies.

Why choose a non-adjustable damper? When you want a simple, economical solution with fewer moving parts and a robust, heat-tolerant body, this 4 in. cast iron damper delivers steady performance with minimal upkeep. If you require adjustable airflow control, explore other models designed specifically for variable damper operation.

The Details Specifications

Brand Imperial
SKU 40834
UPC 063467732792
Unit 0
Case Pack Quantity 12 per case
Retail Unit Quantity 1
Unit of Measure 0 0
Dimensions (L × W × H) 9 × 4 × 1
Weight 0 lbs
Cubic Feet 0.01232 ft³
Country of Origin CHINA
Safety Data Sheet (SDS) Manufacturer documentation · opens in new tab

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