?.They're 6'' (150mm) diameter vent opening; total unit size is 8'' x 8''.
?.Used to prevent wind, rain and snow from entering the outdoor dryer vents.
?.Adding UV inhibitors to the cover to prevent sun damage and cracking, perfect for dryer or bathroom fan venting.
?.Install in just a few minutes, easy to open, good ventilation, maximum exhaust.
?.Please make sure you need the size before purchase to make better use