8" Vacu-Stack Masonry Adapter

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The Vacu-Stack Masonry Adapter allows you to mount a regular Vacu-Stack on a masonry flue. The quick and easy installation process begins by sealing the adapter to the top of the f lue with silicone sealant. Next, turn the wing nut device that extends the ends of the threaded rod at the sides of the adapter until the ends of the rod are wedged at the corners of the flue. The Vacu-Stack itself then simply fits into the round portion of the adapter. The 8" Vacu-Stack Masonry Adapter connects to a regular 8" Vacu-Stack to 13" x 13" tile. It fits 8 1/2" x 8 1/2" to 13" x 13" flues. The Square Plate Measures: 14" x 14". Wind tunnel tested Meets UL standards 304 Stainless steel construction Cures most wind related back drafts problems Show more