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18 in. Evaporative Cooler Heat Plug Cover


Air Conditioners & Coolers

This duct insulating plug prevents cool air and drafts from entering through the grill. The plug also reduces noise and heat loss. The removable Hurricane fabric cover is easy to clean.

  • Friction fit for a full and positive seal
  • Not for use when cooler is in operation
  • Thick interior insulation
  • Sized 18 in. L x 18 in. W x 4 in. H
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