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8'' Insul-Plug Insulating Wall Thimble Plug

Item Code: 5CO-34250

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List Price: $198.23

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You Save : $50.36 (25.40%)

Your Price: $147.87 Free Shipping*


Prevent smoke and carbon monoxide from reentering your home with an 8'' Insul-Plug. Used to block old, unused thimble holes in masonry chimneys.

    8'' diameter
  • The black outside plate covers up to a 10" diameter hole
  • Sides expand and create a tight fit inside the thimble opening

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