R6.7 Unfaced Multi-purpose Fiberglass Insulation, 5.33 Sq. Ft. Coverage, 2 X 16 X 48-in. Roll

Johns Manville Formaldehyde-free multi-purpose roll insulation is for use in gaps around doors, windows, wall and window air-conditioning units. It helps save energy and offers good sound absorption. Inorganic glass fiber will not rot, mildew, or deteriorate. This product has been GREENGUARD ® certified for superior indoor air quality.