Builder's Best 111804 PEV802/PEV620 4-Inch Under-Eave Exhaust Vent

Vent bathroom fans or dryer vents right through an eave of your house with the efficient PEV802 4 in. Under-Eave Exhaust Vent from Builder's Best. The free-swinging back flapper protects against birds and rodents while providing excellent lint discharge. Not to mention, pre-drilled mounting holes in this vent make installation simple and secure.