Improve indoor air quality and acoustic comfort with Johns Manville Linacoustic RC Duct Liner. Designed specifically for sheet metal ducts, this fiberglass liner features a durable, reinforced airstream surface that resists damage during installation and use, making it ideal for commercial and industrial HVAC systems.

Duct Liner, 100 ft Length, 56-1/4 inch Width, 1 inch Thick, Installed R-Value 4.20, Fiberglass Construction with a glass mat airstream surface coated with antimicrobial coating.