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Johns Manville Fiberglass Insulation R-31 24" x 48" x 9.5"; 64 sq.ft

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24-inch x 48-inch x 9.5-inch; 64 sq.ft

Johns Manville Formaldehyde-free™ fiberglass insulation provides thermal and accoustical control for both vertical and horizontal applications. Fiberglass insulation is available in a wide range of thermal resistance R-values and is available unfaced or with a variety of facings, including kraft or foil.