Infinity Tools 4" to 2-1/2" Reducer

It adapts 4" hose down to 2-1/2" hose, letting you connect a 4" main line to a smaller 2-1/2" tool port. See more dust collection fittings.

The taper steps the diameter down gradually for better airflow, keeping air moving smoothly between the 4" and 2-1/2" ends.

It connects 4" hose on the large end to 2-1/2" hose on the small end. Pair it with matching dust collection hoses.

Many routers, sanders, and bench-top machines use a 2-1/2" port. This reducer lets you feed them from a larger 4" main line.

A gradual taper reduces turbulence as the diameter changes, helping keep airflow efficient when stepping down from 4" to 2-1/2".

This one steps a 4" hose down to 2-1/2", while the 4" to 2" reducer steps down to 2". Choose the one that matches your tool's port size from our dust collection fittings.

It is made by Infinity Cutting Tools. Explore the full dust collection collection.

As long as your hoses match the 4" and 2-1/2" diameters of each end, the reducer will connect them in your dust collection setup.

Clamps are not included, but securing each hose to the reducer helps maintain a tight, airtight connection over time.

Yes. It works alongside hoses, ports, and other fittings. Browse the full dust collection range to build out your shop.