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Medium Chimney Balloon® Chimney Pillow® inflatable chimney plug draft stopper.
Perfect for a 12" Diameter tubular steel lined chimneys.
Can be used with small 12"X12" non lined (brick surface) square chimneys.
If the location you measured for your Chimney Balloon cannot easily be touched with your hand you will want an HEK Handle Extender for your balloon to provide an extra long handle/valve to make the install go easier.
Attention: Please remember the dimension and size refers to your chimney size NOT Chimney Balloon™ size. This balloon will work on a chimney up to 3" smaller in width or height. This Chimney Balloon will not work on a chimney any larger than 12"X12". If your chimney is not a standard size please see our Custom Balloon section to order a custom size Chimney Balloon.