Master Flow 16 in. x 8 in. ABS Plastic Replacement Manual Foundation Vent in Black

The 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 8x16 opening.