3M™ Vacuum Hose Fitting Adapter 20341, 1 in Internal Hose Thread x 1-1/2 in OD Hose Adapter, 10 per case
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 : Amazon.ca: Home
2 Pieces WS25011A 2-1/2-Inch to 1-1/4-Inch Universal Vacuum Hose Adapters Dry Wet Vacuum Adapter in Black Vacuum Cleaner Adapter Replacement Accessories : Amazon.ca: Home
Amazon.com: MEANLIN 6 Pieces Universal Vacuum Hose Adapter Kit, 1-3/8" to 1-1/4", 2-1/2" to 1-1/4", 1-1/4" to 1-3/8" to 1-1/2", Plastic Vacuum Hose Connector Reducer Attachments for Vacuum Cleaner : Automotive
Hose Cuff Adapter for Wet/Dry Vacuum Accessory Kit - Lee Valley Tools