WORKSHOP Wet Dry Vacuum Adapter WS25011A 2-1/2-Inch To 1-1/4-Inch Universal Shop Vacuum Hose Adapter for Shop Vacuum Accessories Personal Digital Assistant / Handheld PCs Accessories - Newegg.com
RIDGID 2-1/2 in. DIY Shop Vac Attachment Kit with 7 Vac Parts for RIDGID Wet/Dry Shop Vacuums LA2537 - The Home Depot
Universal Vacuum Hose Adapter Kit Reducer Attachment Set Converter from 1 1/2 inch to 1 1/4 inch from 1 3/8 inch to 1 1/4 inch Dust Hose Port Adapter - VACEXT Store
9 Pcs Universal Vacuum Attachments For Shop Vac- 2 1/2 Inch To 1 1/4 Inch Shop Vac Hose Adapter, Va | Fruugo NO