Product Details

• Amazon Sales Rank: #151 in Home Improvement
• Brand: Jet
• Model: JW1044

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
• 2-1/2-by-4-inch outer diameter

Amazon.com Product Description
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.

From the Manufacturer
Woodworkers who own Shop-Vacs or the equivalent will appreciate this adapter. It allows you to connect a 4-inch line or to tie into other machines that have 2-1/2-inch dust ports. The outer diameter is 2-1/2 by 4 inches.

Customer Reviews

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.