Mud Dauber Screen, pkg.
Buy from a Distributor:
Order Direct from SupplierScreen measures 7-1/2" x 4-1/8" x 1-5/16". Fits most Colman, Suburban, Sol-Aire, Hydroflame furnace vents. Keeps out nesting insects, birds, and rodents with minimal airflow restriction. Easy to install, includes tool. Heavy-duty stainless steel mesh cover.
