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Rockler Dust Port Adapter, 1-1/4'' Vacuum Wand to 2-1/4'' Port | Rockler Woodworking and Hardware
Threaded Hose Adapter, 1-1/2'' Hose to 2-1/4'' Vacuum Intake| Rockler Woodworking and Hardware
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WoodRiver Dust Connection - 1-1/4" ID to 2-1/4" OD Adapter Dust Collection Fitting
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SVR-4505 Vacuum 2 1/4" Intake to 1 1/4" Black Hose Reduces Adapter for Shop Vac | eBay
2 Dust Fitting Adapter for Shop Vac 1-1/4 in to 2-1/4 in Diameter Hose - Walmart.com
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RIDGID Hose and Accessory Adapter Kit for RIDGID Wet/Dry Shop Vacuums VT1755
ALL PARTS ETC. Vacuum Hose Adaptor 2.5" to 1.25” Compatible with 2.5" Shop Vac Conversion for Fitting 1.25" Attachments, 2 1/2" to 1 1/4" Vacuum Fitting Adapter : Home & Kitchen
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