The Master Flow 3 in. x 150 ft. Fiberglass Weave is slightly tacky to make for an easier installation. This duct repair fabric provides closure for duct-board boxes and helps patch leaks and holes. To help ensure an airtight seal, it can be used with mastic as code dictates.
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- Provides closure for duct-board boxes and helps repair leaks and holes
- Slightly tacky for an easier installation
- Attach with staples (not included) to duct board, then apply mastic (not included) as code directs
- 3 in. x 150 ft.








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