Amazon.com: 2-Layer Material 1/8#1 PLASTAZOTE + 1/16 Echo Blue 40" X 40"
Echo Eliminator Bonded Acoustical Cotton (B.A.C)
BIM objects - Free download! Echo Eliminator Bonded Acoustical Cotton (B.A.C.), The Most Cost Effective Acoustical Absorbing Material On The Market | BIMobject