4" FAB 6 W/VINYL SLEEVE

This acoustically rated flexible air duct consists of a spun bond nylon, non woven core mechanically bonded to a scuff resistant galvanized steel helix without the use of adhesives. This low pressure UL 181Class 1 product has excellent broadband acoustic properties ideally suited for lowering dB levels. | Also available with mylar barrier (Fab 6M version)