Imperial Manufacturing 6719900 Adjustable Flue Stopper – Black

This stop adjusts to fit 6 in, 7 in and 8 in flue wall openings
It has adjustable spring for snug fit, Used as a decorative Chimney plug
Used for decorative plug covers of Wood Stove chimneys and Vent Stacks
Sturdy 24 gauge construction, Adjustable anchors keep stopper securely in place
Consult your local codes for approved installation practices