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Item 143660
Model 143660

WoodRiver - 4-Inch I.D. Union Fitting



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

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Quickly connect and disconnect various dust collection fittings with 4" O.D. ports like elbows, Y's, T's, and blast gates. Tapered 4" I.D. opening on both ends provides friction union between many of the dust collection fittings used to create a system for chip removal.


• Tapered 4-Inch I.D. Opening Both Ends

• Joins Fittings With 4-Inch O.D. Ports

• Quickly Connect Elbows, Y’s, T’s, and Blast Gates

• Overall Length 3-3/4 Inches

• Durable Polypropylene Plastic


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

    It's correctly labelled.

    This is useful for connecting rigid pipes, Y branches, right angles, blast gates to each other. Since these devices have a 4" outside diameter, the union fitting product has a 4" inside diameter.

  2. 5.0 out of 5 stars
    by on

    As advirtised

    This fitting makes it easy for my to switch my Jet dust collector from my band saw, to the table saw, to the dust hood etc with messing with feeding fitting into the hose and securing it with a clamp. I do need a variety of fitting for each piece of equipment, but I do not have hoses going all over the place in my shop.

  3. 5.0 out of 5 stars
    by on

    4" Union Fitting

    Product is correctly labeled 4" I.D. (Inside Diameter). Perfect friction fit on dust collection fittings. No clamps or tape needed

  4. 1.0 out of 5 stars
    by on

    O.D. means OUTside diameter

    I bought this because I needed a piece with the outside diameter of 4". This piece has an INSIDE diameter of 4". Product is incorrectly labelled.

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