Foundation Vents 1/4" molded-in screen for insect protection. 50 sq. in. net free ventilation area. Includes optional fixed louver. Listing Back To Top Design Visualizer Previous Next Design Visualizer CADdetails™ You need to be logged in to view & download files. Login/Register New to CADdetails? Register to enjoy full access to unlimited 3D models, CAD drawings and specifications. It's free! Downloads Architectural Product Information About Specs Media CAD Toolbar CADdetails™ Download All Manage & Share Website Share Add to Project Favorite User Feedback