Features:

• 4-inch to 2-1/2-inch reducer allows you to step down from a larger size machine
• Connects 4-inch line to 2-1/2-inch dust ports
• Step down increases air velocity where it is needed most
• Reducer lets you adapt to many machines

Editorial Review:

Ideal for woodworkers with Shop-Vacs or the equivalent, the Jet 4-Inch to 2-1/2-Inch Reducer allows you to step down from a larger size machine. The reducer connects 4-inch line to 2-1/2-inch dust ports. The step down increases air velocity where it is needed most. With an outer diameter of 2-1/2-by-4-inches, this reducer lets you adapt to many machines.

Customer Reviews:

Avg. Customer Rating: 3.0 / 5.0

Good as a connector for vacuum hose:

This adapter works great for what it is designed for. It is only for changing 4 inch hose to 2 1/2 hose. Not designed to connect directly to a tool or shop vacuums. Usually the 2 1/2 inch hose will connect to the tool.

Don't trust the four inch size, get exact ID and OD size:

As another reviewer said..... this is the exact same size as the tool port I have.... it is NOT four inches, but slightly less. If it were exactly four inches, it would have worked.... if it were funnel shaped, it would have worked, but it's the exact same size as my dust port. it will not fit over , or inside my dust port. The industry needs a better explanation for dust port sizes.... This has caused me agravation a few other times on shop vac and other tool dust port sizes.
Gene

2 1/2" reducer:

If I had known that this was included with the Dust Hood I would not have ordered it. It is now in excess of my requirements.

You may want the JW1000:

There seems to be some confusion/frustration about this item so consider if this is the item you actually need. This product is not designed to go directly from a 2 1/2" dust port to a 4" hose. If that is what you want get the Jet JW1000 4-Inch to 2-1/4-Inch OD 2-Inch ID Reducer
2 1/2" dust ports typically have 1/8" thick plastic which creates an interior diameter (ID) of 2 1/4". I own the JW1000 adapter and it fits perfectly into/inside my 4" dust collection hose and into/inside my 2 1/2" port on an... more info

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