High-Performance Nomex Gasket Upgrade Kit for Vision Grill - 2yr Warranty 2 Year Free Replacement Warranty & Made in USA Material for Top and Bottom Plus Chimney Seal Telephone support, videos, and full color instructions for gasket installation and grill adjustment Genuine Hi-temp Nomex felt and hi-temp adhesive backing 12ft Long, 1" Wide, 1/4" Thick (3.6m x 25mm x 6mm) plus Chimney Seal