Knauf Insulation B47EV R21K Insulation, 93 in L, 15 in W, R21 R-Value, Fiberglass, Natural Brown [SKU: ORG0302596]

Made primarily from sand, one of the world's most abundant and renewable resources, Lower embodied energy than our traditional batts, Rapidly renewable binder eliminates petroleum-based chemicals, Contains a minimum of 61.9% post-consumer recycled content, Thermally efficient batt has excellent insulating value, Reduces airborne sound transmission and significantly improves STC ratings of wall configurations, Cuts easily and cleanly, recovers quickly and enhances productivity, For commercial and residential applications. [QTY/UOM: 7 / 1BG]