Master Flow
4 in. Galvanized Back Draft Prevention Damper
$26.25

AC-BD 04

Heating, Venting & Cooling

Speedi-Products 4 in. Galvanized Sheet Metal Round Back Draft Damper. Ideal for use with intake or exhaust duct systems. Can be used for Remodeling, Do it yourself and New Residential projects.

  • Ideal for use with intake or exhaust duct systems
  • Seal joints with approved duct mastic sealants
  • Insulate ductwork for improved energy efficiency and comfort
  • Consult your local building codes for approved installation practices
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