Construction Metals 6.5 in. H X 7.75 in. W White Polystyrene Vent Plug

Keep cold air and moisture out with the Construction Inc. 6-1/2 in. x 16 in. Vent Plug (2-Pack). It includes 2 single 6-1/2 in. x 16 in. pieces that have been pre-attached, offering a hassle-free installation to save you time. The foam plugs help keep moisture and cold air below the house from making their way into the living spaces. The DVBP is specifically molded in the design of the Vent-Air style block vent.