Hart & Cooley RWT Wall Thimble, Adjustable, 6 Inch, 8-1/2 Inch OD Diameter, 3-1/4 Inch Width, 0.018 Inch Thickness, G-90 Steel, Galvanized, For Use With: Type B Gas Vent Systems
- Provides necessary clearance to combustibles
- Sleeve is adjustable from 3 - 6 Inch
Standard/Approvals: UL 441 Listed
