OC R-21 5.5" x 15" - 93" KRAFT FACED INSUL BATTS 67.81-SQFT (7-BATTS) | R-21 Fiberglass Kraft Faced Batts
5-1/2" x 15" x 93"
7 Pieces (Batts) per bundle
67.81 Square foot per bundle
"R'' stands for resistance to heat flow. The higher the R-value the greater the insulating power.