Quikrete 864000 Concrete Crack Seal, 1 Quart Double Strength Maximum height of chimney which

Maximum height of chimney which can be supported by an insulated tee is 50'

Used with copper

Increases R-value by 90% over a single pane window

For use on rusted metal only

Size: 1-1/4" x 2-1/2"

Quikrete 864000 Concrete Crack Seal, 1 Quart Double Strength Maximum height of chimney whichHighlights: Color: Gray Package Size: 1 qt. Ready to Use Use for indoor and outdoor Applicator included Packaging Type: Bottle Use to repair cracks in concrete Gray color blends with concrete patios, sidewalks and driveways Pour directly from the bottle For cracks up to 1 2 inch 30 minute working time WARNING: This product can expose you to chemicals including Silica, crystalline, which is known to the State of California to cause cancer and birth