Lambro 164W Double Sided Under Eave Vent 4 White

Adapts to 4 or 6 exhaust ducts has 2 removable screens to prevent birds & squirrels from entering. Includes a double sided under eave vent. 2 removable screens & 6 to 4 transition collar. 4 ; White; Adapts to 4 or 6 exhaust ducts has 2 removable screens to prevent birds & squirrels from entering; Includes a double sided under eave vent; 2 removable screens & 6 to 4 transition collar.;