Grip-Rite RXCB551525 Stone Wool Insulation, 3.91 ft L, 47 in W, 5-1/2 in Thick, 39.8 sq-ft Coverage Area, R23 R-Value

Grip-Rite Stone Wool Insulation, Insulation Location: 2 x 6 Attics, Basements, Ceilings, Crawlspaces, Floors, Walls, 39.8 sq-ft Coverage Area, R-Value: R23, 3.91 ft L, 47 in W, 5-1/2 in Thick