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Introducing the 4-Inch to 2-1/4-Inch Eccentric Reducer by POWERTEC.
This dust collection fitting allows you to step down from a 4-Inch hose to a 2-1/4-Inch ID shop vacuum hose, port, or branch lines. It’s easy to use and offers a secure, quick attachment to your dust collector hose. This dust fitting increases air velocity near the machine where it's needed most. Additionally, it features an off center alignment, this smartly designed reducer helps keep dust from gathering in your system.
Heavy Duty Quality
We make our reducers utilizing premium ABS plastic material, which provides long-term durability with resistance to rust and corrosion. It’s thick walls are intended to stand up to hose clamp pressure and the abrasive nature of woodworking and workshop dust collection.
Specifications
Color: Black
Material: ABS Plastic
4-Inch Nominal End Measures: 3-61/64 inch outer diameter by 3-45/64 inch inner diameter
2-1/4-Inch Nominal End Measures: 2-1/4 inch outer diameter by 2 inch inner diameter
POWERTEC is a leading manufacturer of high quality wood work accessories, sanding discs and an assortment of OEM replacement parts. We are committed to exceeding expectations, while bringing the latest innovations, technology, and product development to the industry.
Bill
Reviewed in Canada on September 29, 2024
exactly what you need to fit a 4 inch hose to a woodworking machine. the small end will not acept the smaller hose as it is meant to fit in the tool like a hose.
Customer
Reviewed in the United States on June 5, 2024
Bueno
Bullwinkle
Reviewed in the United States on May 30, 2024
Nice secure fit into the dust port on my saw. Paired it with a 4" rubber connector and one of the new Woodpecker MagQuick magnetic hose fittings. Easiest hookup ever and very nice extraction into my Rockler DustRight wall-mount dust collector and Oneida Dust Deputy XL cyclone separator.
dawn walker
Reviewed in the United States on May 13, 2024
This accessory fits perfectly into my table saw and connects seamlessly to my dust collection system, just as I needed. I highly recommend it to anyone in search of a similar solution.
OP
Reviewed in Canada on October 23, 2024
This was the best price available that I could find for this item and it worked as described.
Alice
Reviewed in the United States on June 3, 2021
This product is intended to reduce a 4" dust collection hose down to a tool which has a 2-1/2" dust collection port. Something like a bandsaw, small table saw, jointer, etc. It's not supposed to be used to hook up your 2-1/2" shop-vac to a giant hose for your 4" tool port or whatever else you might be thinking.This reducer has a 3-15/16" outer diameter connector for a 4" hose on the larger end. The inner diameter is not relevant because that's not how it's used. It has a 2-1/4" outer diameter connector for a 2-1/2" tool on the smaller end. It's slightly flared (outward/larger) away from the end to tighten-down as you insert the small-end into your tool's dust port. The inner diameter is not relevant because that's not how it's used.One measurement I didn't see anywhere in the specs or the comments was the eccentric offset itself. There is a lip on the plastic on the large-end which is slightly larger than 4". This is the "back-stop" for the 4" vacuum hose. It's diameter (irrelevant, but helpful for reference) is 4-1/8". The outer edge of the small-end is 3/8" away from that lip. So if you want to put this into the 2-1/2" hose-port on your tool, you'll need to have ~1/2" of clearance around the port in order to use this.I was a little worried about my Craftsman benchtop bandsaw (124.214000) because it has very little clearance around the dust port. This item fits perfectly and snugly into the dust port on that saw. I haven't given it much use at this point, but if it starts to wiggle loose, I might drill a hole through the dust port flange and the reducer, thread the hole, and put a set-screw in there to make sure it doesn't move at all.Yes, it's a cheap piece of plastic. That's why it's inexpensive. Removing the label is not necessary for operation, but if you do remove it quickly, another reviewer is right that you will likely be using Goo Gone, Krud Kutter, or some other kind of product to remove all the adhesive. Or, you can use your fingernail slowly and remove it all at once and no chemical intervention will be required.The plastic is rigid but slightly flexible which is good if you need to jam it into the tool's dust port and also into those 4" hoses which can be inflexible sometimes. If you dropped it on a hard shop floor, it might crack or chip. I don't expect to be tossing it around my shop so I expect it will last as long as I care to use it.If I end up with another tool with a 2-1/2" dust port, I'll probably buy another one of these for it.
Bruce Evans
Reviewed in the United States on June 24, 2021
This adapter is perfect for what it does and where it will fit (and will not) is pretty simple. The 4" end is male connector that accepts 4" dust collection hose. The hose will slip right over this piece and a band clamp will secure it. Now for the small end--over which there has been some confusion. If your male hose end is 2 1/8" outside diameter and your tools are 2 1/4" inside diameter then know that this is a MALE 2 1/8" outside diameter fitting. If your 2 1/8" shop vac hose will go into the fitting--then so will this. For instance: I have an enclosed shroud I built for my ShopSmith 12" sanding wheel because it is a major source of dangerous sanding dust. The suction port on the unit was built from a table saw guard and so it is a 2 1/4" I.D. FEMALE fitting. My shop vac hose wedges inside. So this adapter end is the same size as the shop vac hose MALE. See pictures above.While I will lose considerable cubic feet air flow because of the reduction, I believe the dust collector will still be superior to the shop vac in drawing out the fine dust particles. So when planning your uses for this adapter remember it must have a connector that is tool (crevice, brush, straight tube) size that it can be placed inside of.
Allen Holdway
Reviewed in the United States on February 21, 2020
Great product, the off set 3 inch vacuum connect is prefect for bandsaw. The 4 inch hose runs to shop system.
Rene Daigle
Reviewed in Canada on July 3, 2019
Worked great on my woodwork dust system
alexdelara
Reviewed in the United States on November 11, 2018
Quality is alright, although the necks could be longer.Does not fit the end of my shop-vac hose so it became useless the moment I found it out. I will have to heat it up with the heat gun to make it either larger or smaller but still, I backed off.What actually worked for me was a $6.98 rubber coupler at the big blue store, (Fernco 2-inch rubber sleeve P3000-22, store item # 792021). It comes with a metal sleeve, which I took out and used the clamps to hold the rubber sleeve in place. Then the Ridgid hose comes right inside the rubber sleeve. Problem fixed.
Rivian
Reviewed in the United States on October 23, 2016
I have the craftsman/rikon table top bandsaw. It's got a 21/2 outside diameter dust port. Wanted to used my dust collector for this saw. The outside diameter of this reducer is 21/4 and slips in perfectly and stays in the saw's dust port. The other end fits the standard 4" dust collector hose. Overall really good for it's intended purpose. If you're thinking about doing the same thing, I think it's worth playing with. But in my experience, this does little in terms of dust collection in this particular saw. I still have lots of saw dust and ended up using the shopvac to clean up anyways.
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