2 1/2" Y-Connector for multiple tool connection Allows you to connect more than one tool to your dust collector system Connects easily to 2 1/2" Flex Hose (SOLD SEPARATELY) Easy to position exactly where you want Sturdy ABS plastic construction The 2 1/2" Y-Connector, 2 1/2" T-Connector, 2 1/2" Elbow Connector) and the 2 1/2" Splice Connector (EACH SOLD SEPARATELY) will allow you to set up your ultimate Dust Collection System