Knauf ECOSE Black Acoustical Thermal Smooth Glass Fiber Board 2 Inch Thick 6 Pack

6 Pack of 24" x 48" x 2" Boards NRC rating of 1.0 and ASTM E84 Class 1 or Class A Fire Rated Boards contain no phenol, formaldehyde, acrylics, or artificial colors and are a safe alternative to other fiberglass materials