Wall Thimble, Fits 6 Inch Double-Wall Chimney Pipe, 8 Inch Inner Flange Diameter, Adjustable Stainless Steel Pass-Through Venting Kit, Insulated Heat Shield for Wood Stoves, Fireplaces

Designed for 6-Inch Chimney PipeAllows safe passage of a 6" double-wall chimney pipe through combustible walls while maintaining proper clearance and ventilation. | Adjustable Fit for Different Wall ThicknessExpandable inner sleeve (typically 712 inches) adapts to various indoor/outdoor wall depths, providing flexibility during installation. | 304 Stainless Steel ConstructionDurable corrosion-resistant stainless steel offers long-lasting performance and stability, even in high-temperature wood stove or fireplace setups. | Heat Shield & Safety SpacerDouble-wall insulated design protects surrounding structures by maintaining the correct air gap and preventing heat transfer. | Easy Installation for HomeownersIncludes inner and outer mounting plates for a clean, professional finish. Ideal for wood stoves, fireplaces, pellet stoves, or HVAC venting systems.