American Metal 6hs WTP Wall Thimble 3 Wall NFJ0U_GG561

Product details:

Chimney wall thimbles type a for wood and coal for 6 inch id 9 inch od stove pipe for walls from 4 1/2 to 8 inches thick provides proper clearance for vent from combustibles and serves as a firestop. Used with tee branch and chimney section to provide proper clearance to combustible materials. Matte black painted surface for interior wall eliminates need for trim plate.