Spec Sheet R-12 Insulation Flyer Internally Lined Duct is ALWAYS going to have superior Acoustics/Sound Attenuation than Externally Wrapped Duct. The standard Duct Liner used in the majority of commercial jobs is referred to as a Fiberglass insulation. It has always been the only method to achieve sound absorption performance. John’s Manville’s Linacoustic® RC insulation is a preferred product in this space due to it’s superior backing on the airstream side and it’s ease of cutting during the fabrication process. Made from strong glass fibers bonded with a thermosetting resin and an airstream surface protected with JM’s exclusive Permacote® acrylic coating, it’s sold in 1/2″ thru 3″ thick and in various width increments of 3 ft, 4 ft and 5 ft to match the Galvanized metal to which it is mating. Now available in 3 inch thickness! RC Item Codes: Description: ML12X3512X100 1/2 × 35-1/2 x 100ft JM RC Liner #90005547 ML12X4712X100 1/2 × 47-1/2 x 100ft JM RC Liner #90005552 ML12X5614X100 1/2 × 56-1/4 x 100ft JM RC Liner #90005559 ML12X5912X100 1/2 × 59-1/2 x 100ft JM RC Liner #90005562 ML1X3512X100 1 × 35-1/2″ x 100ft JM RC Liner #90005499 ML1X44X100 1 × 44.25″ x 100ft JM RC Liner #90005505 MTO ML1X4712X100 1 × 47-1/2″ x 100ft JM RC Liner #90005512 ML1X48X100 1 × 48″ x 100ft JM RC Liner #90005514 ML1X56X100 1 × 56” x 100ft JM RC Liner #90005521 ML1X5614X100 1 × 56-1/4” x 100ft JM RC Liner #90005506 ML1X5612X100 1 × 56-1/2″ x 100ft JM RC Liner #9000524 ML1X5912X100 1 × 59-1/2″ x 100ft JM RC Liner #90005534 ML1X59X100 1 × 59″ x 100ft JM RC Liner #90005531 ML1X60X100 1 × 60″ x 100ft JM RC Liner #90005538 ML1X6014X100 1 × 60-1/4″ x 100ft JM RC Liner #90005540 ML112X3512X50 1-1/2 × 35-1/2″ x 50ft JM RC Liner #90005573 ML112X4712X50 1-1/2 × 47-1/2″ x 50ft JM RC Liner #90005581 ML112X5614X50 1-1/2 × 56-1/4″ x 50ft JM RC Liner #90005588 ML112X5614X100 1-1/2 × 56-1/4″ x 100ft JM RC Liner #90005587 ML112X5912X50 1-1/2 × 59-1/2″ x 50ft JM RC Liner #90005592 ML112X5912X100 1-1/2 × 59-1/2″ x 100ft JM RC Liner #90005591 ML2X4712X50 2 × 47-1/2″ x 50ft JM RC Liner #90005605 ML2X48X50 2 × 48″ x 50ft JM RC Liner #90005606 ML2X5614X50 2 × 56-1/4″ x 50ft JM RC Liner #90005610 ML2X5912X50 2 × 59-1/2″ x 50ft JM RC Liner #90005612 ML2X60X50 2 × 60″ x 50ft JM RC Liner #90005494 ML2X6012X50 2 × 60-1/2″ x 50ft JM RC Liner #90005613 ML3X5914X50 3×59-1/4x50ft JM RC Liner 90026704 PM Item Codes: Description: MLPM12X4712X100 1/2 x 47-1/2″ x 100ft PM JM Liner #90004918 MLPM12X5912X100 1/2 x 59-1/2″ x 100ft PM JM Liner #90004921 MLPM1X4712X100 1 x 47-1/2″ x 100ft PM JM Liner #90004905 MLPM1X5614X100 1 x 56-1/4″ x 100ft PM JM Liner #90004908 MLPM1X5912X100 1 x 59-1/2″ x 100ft PM JM Liner #90004912 MLPM112X4712X50 1-1/2 x 47-1/2″ x 50ft PM JM Liner #90004926 MLPM112X5614X50 1-1/2 x 56-1/4″ x 50ft PM JM Liner #90004930 MLPM112X5912X50 1-1/2 x 59-1/2″ x 50ft PM JM Liner #90004932 MLPM2X3512X50 2 x 35-1/2″ x 50ft PM JM Liner #90004933 MLPM2X4712X50 2 x 47-1/2″ x 50ft PM JM Liner #90004935 MLPM2X5614X50 2 x 56-1/4″ x 50ft PM JM Liner #90004936 MLPM2X5912X50 2 x 59-1/2″ x 50ft PM JM Liner #90004938
