The GAF Master Flow Replacement Manual Foundation Vent allows air to circulate, helping reduce moisture and decay in the crawlspace, with a NFA of 67 sq. in. No mortar is needed, only 4 screws to install. It opens and closes easily with the push-pull damper, and is made of durable ABS plastic. Has heavy-duty screen, and fits the standard 8 in. x 16 in. opening.
- No mortar needed, only 4 screws to install (included)
- For replacement or new construction
- E-Z open and close push-pull damper
- Can be used for mobile home skirting
- Available in black and brown























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