Master Flow
20 in. Slide-In Damper for Evaporative Coolers
$9.39

ECSD20

Air Conditioners & Coolers

The Master Flow 20 in. Slide-In Damper for Evaporative Coolers limits heat loss when an evaporative cooler is not in use. This damper is constructed from galvanized steel for durability.

  • Slides into most evaporative colors
  • Made of galvanized steel for durability
  • 20 in. W for easy storage in the summer
  • Cuts off leaking heat to winterize evaporative coolers
  • Galvanized steel construction
  • Use slide-in-damper to winterize evaporative cooler unit
  • Helps cut off heat leaking out through from the house, through the unit in the wintertime
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