Infinity Tools 3" to 2-1/2" Reducer

It adapts a 3" hose to a 2-1/2" hose, letting you join two different hose sizes in your dust line. See more dust collection fittings.

The taper provides a gradual transition between hose sizes, which improves air flow compared with an abrupt step-down and helps keep debris moving.

A smooth taper reduces turbulence at the size change, which helps preserve air velocity and suction through the line.

Yes. It is ideal for connecting a 3" hose to a 2-1/2" hose or port so tools with different fittings can share the same run. Explore matching dust collection hoses.

Yes, it simply bridges the two hose sizes. Most users place it to step a 3" line down to a 2-1/2" connection.

Yes. It is one of many adapters you can combine to build a full network. Browse all dust collection components.

You will need a 3" hose on one side and a 2-1/2" hose on the other to make the connection.

If your shop vacuum uses 2-1/2" hose, this reducer lets it tie into a larger 3" line or fitting.

For the most leak-free connection, a hose clamp or a wrap of tape at each end is common practice, though it press-fits to standard hose.

You can find additional reducers, elbows, and T-fittings in our dust collection fittings selection.