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R13 3 1/2 in x 16 in Guardian Unfaced Insulation
A high-quality fiberglass batt or roll used in residential construction for thermal and acoustical insulation of walls, ceilings and floors. Unfaced insulation is manufactured in increased widths to permit friction-fit installation in wall cavities.
170.67 sq ft/bag
For California Residents:
WARNING:Cancer and Reproductive Harm - www.P65Warnings.ca.gov
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