21x10 Chimney Balloon Max 2-Ply Inflatable Chimney Pillow fireplace draft stopper, Fireplace Cold Air Blocker
The 21×10 Chimney Balloon plugs a rectangular chimney flue that is between 17”x7” to 21”x10”. The handle valve is 7” long. Every Chimney Balloon draft stopper includes a two-foot-long inflation tube. IMPORTANT - The Chimney Balloon chimney plug CANNOT BE USED in an active GAS LOG SET. For safety, a GAS LOG set would need to be DISABLED or REMOVED in order to use the Chimney Balloon fireplace plug.
Chimney Balloon 21x10 Max 2-Ply Inflatable Chimney Pillow Fireplace Draft Stopper, Fireplace Cold Air Blocker, Works Better Than A Chimney Flue
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