6" Heatfab 304-Alloy Stainless Steel Chimney Top Adaptor Sleeve is used to finish the top of your 6" liner installation with a mortar crown. With thermal expansion, the installed liner slides up and down through this chimney top adaptor sleeve. 5" tabs rest on top of the masonry chimney, centering the installation while you pour your mortar crown.
WARNING: Carcinogens: This product can expose you to chemicals including Lead, which is [are] known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov.