8" Stainless Vacu-Stack

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The Vacu-Stack Chimney Cap is the best solution for wind induced downdrafts on both masonry and prefabricated chimneys. It is designed to stop wind from blowing into the chimney re gardless of the wind direction. Accelerated air flow around the Vacu-Stack causes flue gasses to flow up and out of the chimney.This model is designed for a round Class A Double Wall Chimney and can be used on a masonry chimney with proper adapter sold separately. 100% Stainless Steel Construction Lifetime Limited Warranty Meets UL Standards Easy to Install, self-adjusting spring fit See Vacu-Stack Ordering Instructions for proper fit. View the Vacu-Stack Guide. Vacu-stack SizingProduct Note: This item does not include a spark screen, It must be purchased separately. The spark screens that would fit this cap are the Vacu-Stack 1/2'' Spark Screen or the Vacu-Stack 1'' Spark Screen. Show more