- Available thickness: R6: 1 1/2"
- Ceiling boot assembled with 1/8" x 5/32" Zinc-coated Steel rivets has a rectangular opening with a 1" 90° outboard flange and 1/2" drywall flange
- Install with boot rail model 100326, sold separately
- Insulation: top piece: SuperDuct RC manufactured by Johns Manville
- Material: ASTM-A653 CS Type-B galvanized steel, G-30 coating, LFQ chemical treatment
- Sides: Linacoustic RC manufactured by Johns Manville