70104 4 Inch to 2-1/2 Inch Hose Reducer, Dust Collection Fittings for Dryer V...

POWERTEC 4 to 2-1/2 Inch Hose Reducer Adapter (70104)

70104 4 Inch to 2-1/2 Inch Hose Reducer, Dust Collection Fittings for Dryer V...

Vacuum Adaptor Adapter Dust Port Power Tool Sander Reducer Extractor Hose Pipe

Dryer Vent Cleaner Lint Remover Vacuum Hose Attachment for Dust and Pet hair

POWERTEC Dust collection Reducer, 2-1/2-Inch to 2-1/4-Inch (70141)

Powertec 70136 4" to 2-1/2" Cone Reducer for Versatile Dust Collection

Dryer Vent Lint Power Remover Vacuum Hose Attachment Cleaner Kit for Washer Duct