Master Flow 3 in. x 150 ft. Fiberglass Weave

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.

• Constructed from fiberglass for long-lasting use
• Provides closure for duct-board boxes and repairs leaks and holes
• Offers an airtight fit when used with mastic