View a Larger Image of 4" x 2-1/2" Funnel Reducer Dust Collection Fitting
Item 163445
Model YW1093

WoodRiver - 4" x 2-1/2" Funnel Reducer Dust Collection Fitting



Save 25% On WoodRiver Dust Connection Fittings, Hoses & Accessories Now Through August 31, 2020

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WoodRiver® Funnel Reducer Dust Collection Fittings improve the efficiency of your shop vacuum powered dust collection system. This tapered reducer allows a smooth transition from 4" hose to a variety of fittings you may be using to connect to your shop vacuum. One side of the 4" to 2-1/2" Funnel Reducer Fitting fits inside most 4" dust collection hose, while the other side fits inside most 2-1/2" dust collection hose.


• Ideal fitting to use to connect 4" hose to 2-1/2" hose in shop vacuum powered systems

• Tapered reducer to “funnel” debris into the smaller shop vacuum system

• Reducer fitting has 4" OD port on one side and 2-1/2" OD port on other

• Inlet and outlet ports are 2" long to provide room for secure connection

• Molded using ABS material for rigidity and durability


4.0 out of 5 stars
2 Reviews
  1. 5.0 out of 5 stars
    by on

    Fits a Ridgid shop vac hose

    Buying these reducers from the website is pretty difficult, as the outer and inner diameters matter for these. I had bought another Woodriver 4" x 2 1/2" reducer that didn't fit. With the help of one of the guys at the Walpole location, I was able to get the right reducer, which is this one! So if you are trying to fit the reducer over your 2 1/2" shop vac hose (mine is Ridgid) then you should measure the OUTER diameter of your shop vac hose end/connection. If it's 2 1/4, then this will fit over it. Thanks again, Walpole. You're my favorite store.

  2. 3.0 out of 5 stars
    by on

    Fitting Description is not correct

    First off, the description should say hose reducer. Secondly, the actual dimensions are 3.9 X 2.25 inches O.D. This would help in ordering the correct part. Now I must return them and reorder. Two more shipping charges.

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