Aftermarket
Aftermarket Nilfisk Advance 56314760 Gasket
Vacuum duct gasket. Fits Clarke Clean Track L24 and Nilfisk Advance Adgressor, AquaClean (16" & 18" models), CS7000, SC6500 (replaces 56314099) 
Fits Aftermarket Nilfisk Advance 56314760 Gasket