Dust Collector hose to hose 4 Inch to 2 1/2" Reducer, Hose Adapter

70104 4 Inch to 2-1/2 Inch Hose Reducer, Dust Collection Fittings For Dryer

Dust Collector Hose 4 Inch To 2 1/2 Inch Cone Reducer OD Connector Adapter Hose

Lightweight 4-Inch to 2-1/2-Inch Shop-Vac Adapter - Easy Install Hose Reducer

POWERTEC 4 to 2-1/2 Inch Dust Collection Hose Splitter Fitting 4" to 2.5" 70276

4 In. to 2-1/2 In. Dust Collection Splitter Fitting

Fulton 4 Inch to 2 1/2 Inch Reducer Fitting for Dust Collection Hose to Hose Con

POWERTEC Dust Collection Reducer 6 inch OD to 4 inch OD (70277)