2PCS Brown Floor Vent Cover 4″ x 10″ in Adjustable Deflectors For Office Ceiling
And as air deflector when open. Special reminder-If your vent length is between 9.55″ and 10.15″ and the width is between 3.75″ and 4.15″, you can choose the 4″ x 10″. Improve air quality. The wind blown out is more natural and healthy.