R15 3-1/2 X 15 X 93" KF INSUL 77.5 SQ. FT. | R-15 High Performance Fiberglass Kraft Faced Batts
3-1/2" x 15" x 93"
8-pcs. per bundle
77.5-Sq. Ft. per bundle
"R'' stands for resistance to heat flow. The higher the R-value the greater the insulating power.