Amazon.com: Vacuum Cleaner Adapter 35mm (1-3/8 Inch) to 31 mm (1-1/4 Inch) for Inner Diameter 32 mm Brush Fit to Outer Diameter 35 mm Tube Plastic Vacuum Hose Adapter(2 Pieces): Home & Kitchen
Amazon.com: 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 : Home & Kitchen
24/40 90 degree Glass Stopcock Vacuum Adapter
Shop Vacuum Adapter - Lee Valley Tools
RIDGID 2-1/2 in. Universal Power Tool Vacuum Adapter Accessory for RIDGID Wet/Dry Shop Vac... | The Home Depot Canada
Universal Vacuum Adapter - Lee Valley Tools
Intex Vacuum Tube Adapter from SummerBackyard.com | Free Shipping
TEGIWA J35/J37 MAP TO VACUUM ADAPTER from Tegiwa from only £18.00 | Tegiwa Imports
Vacuum Adapters for Power Tool Dust Collection (.STL file for 3D Print) - FarOutRide
Robust, Vacuum Adapter for the American Beauty and Sweet 16 Lathes - The Woodturning Store