4" - 2 1/2" Y-Connector for Dust Collection Systems - Lee Valley Tools
POWERTEC 6 in. x 4 in. x 4 in. Y-Fitting, 6 in. to 4 in. Hose Reducer for Woodworking Dust Collector System (2-PacK) 70189-P2 - The Home Depot
4" - 2 1/2" Y-Connector for Dust Collection Systems - Lee Valley Tools
POWERTEC 70345 Dust Collection Reducer Fittings, 4" Hose to 2-1/2" Hose & 4" Port to 2-1/2" Hose, 2-Pc Set - Walmart.com
Amazon.com: 4" to 2-1/2" 6-Way Dust Collection Splitter Junction Fitting, Multi Port Fits Standard Hoses and Shop Vac Accessories, Dust Medusa : Tools & Home Improvement
Y-Fitting 4" by 2-1/2" for Saw Dust Collection | POWERTEC Saw Dust Collection Accessories Wholesaler
POWERTEC 2-1/2 in. I.D. Y-Fitting for Dust Collection Systems 70228 - The Home Depot
Amazon.com: POWERTEC 70190V 4-Inch by 2-1/2-Inch Y-Fitting Dust Collection Hose Connector, 1 PK : Tools & Home Improvement
Dust Right Ready-Mount 4''-to-2-1/2'' Y-Connector - Rockler
Y Fittings | Dust Collection | Peachtree Woodworking Supply