Amazon.com: WILL NOT WORK WITH SHOP VACUUM HOSES !!! Taytools 73481 2-1/2 Inch 90 Degree Elbow Hose Connector with 2-7/16 Inch OD and 2-3/16 Inch ID ABS Plastic for Dust Collector Systems
POWERTEC 70321 2-1/2” (ID) 90 Degree Elbow, Built-in Coupler for 2.5 OD Pipe/Connectors, w/ Splice for 2.5 ID Dust Collection Hose – Clear PVC - Walmart.com
Dustopper High Flow 90-degree Elbows HF90 - The Home Depot
2.5 inch 90 Degree Plastic Wet/Dry Vacuum Hose Elbow | Oneida Air Systems
Dustopper High Flow 90-degree Elbows HF90 - The Home Depot
Amazon.com: Angled Reducer 4” to 2-1/2”, Connect Shop Vac to Dust Collection Port (4in to 2.5in), Adapter Converter, 45-Degree Elbow, Attach Woodworking Dust Chute to Vacuum Hose, R4520 R4512 (4" to 2-1/2") :