Jet JW1044 4-to-2-1/2-Inch Reducer

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Product Description

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.

Product Description

Includes 4" to 2-1/2" Reducer - JW1044

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Product Details

• Shipping Weight: 1.6 ounces (View shipping rates and policies)
• Shipping: This item is also available for shipping to select countries outside the U.S.
• ASIN: B00005A1IQ
• California residents: Click here for Proposition 65 warning.
• Item model number: JW1044
• Average Customer Review: 3.1 out of 5 stars  See all reviews (40 customer reviews)
• Amazon.com Sales Rank: #509 in Home Improvement (See Bestsellers in Home Improvement)

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Customer Reviews

Most Helpful Customer Reviews

32 of 33 people found the following review helpful:

2.0 out of 5 stars Size is important, February 17, 2005

By	Brian Andrews (Knoxville, TN United States) - See all my reviews (REAL NAME)

Amazon Verified Purchase

The 4" side fits my 4" quick release well enough. The 2 1/2" side fits the END of a 2 1/2" hose. This does not work well if you intend to go directly from your 2 1/2" port on your machine to your 4" dust collection hose. The adapter and the port will more than likely be the exact same size (two female sides).
The adapter is also not shaped the same as in the picture. It is not funnel shaped but a 2 1/2" tube and a 4" tube connected by a flat piece.

22 of 22 people found the following review helpful:

3.0 out of 5 stars Not as pictured, March 18, 2004

By	Railroad Man (Phoenix AZ) - See all my reviews

The adapter I received has a flat interface, not the funnel style shown. That makes a difference if using the piece with the airflow going from 4" to 2 1/2" due to increased turbulence.

If you're planning to use this downstream from large to small diameter then I suggest you find one that is indeed funnel-shaped.

23 of 25 people found the following review helpful:

4.0 out of 5 stars Read the features carefully - or be disappointed..., February 13, 2006

By	David M. Boxmeyer (Boston, MA) - See all my reviews (REAL NAME)

This connector is female on both ends. I didn't pay close enough attention to the description while shopping and ordered it expecting to be able to connect my 2 1/2" shop-vac hose to the 4" dust collection port on my table saw. Needless to say, I was dismayed to discover the diameter of this adapter and the port on my table saw were the exact same OD - meaning it doesn't fit without a 4" hose between the two.

If you do end up in the same situation as me - don't give up hope. I aligned the adapter and DC collection and wrapped a length of duct tape around both. A solid connection that converts my tablesaw from 4" to 2 1/2" and works great! Hope that helps those who were in the same situation as I. For those who have yet to purchase, just make sure this is really the product you are looking for.

In case anyone is really concerned, the actual construction of this adapter is solid and accurate.