Sound Seal Acoustical Pipe and Duct Lagging Flexible Noise Barrier: B-10 Lag / QFA-3 is a composite material featuring a flexible one-pound per square foot reinforced-foil faced loaded vinyl noise barrier bonded to a 1″ thick quilted fiberglass sound absorber.  Used to wrap noisy pipes, ducts, valves and fan housings

• Easy to cut, wrap and install with matching lag tape
• Class A (or 1) flammability rating per ASTM E-84
• Standard roll is 54″ wide x 30′ long