Product Code: JM R12Batt -001

Johns Manville R12 Batt Insulation comes in 15,19,23 and 24 inch widths. Made to fit into 2x4 studs. All Johns Manville Unfaced insulation products are made of naturally white, Formaldehyde-free™ fiber glass, lowering environmental concerns, including the risks of poor indoor air quality and the effects of manufacturing on the environment.