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Reducer 2.5" OD to 3/4" ID or 1.25" OD to 3/4" ID

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  • Reducer 2.5" OD to 3/4" ID or 1.25" OD to 3/4" ID


    I have recently purchased a HD1200 RIDGID Shop-vac.

    I would like to use this with a Makita Drywall Cutout tool dust extractor. The dust extractor port has an OD of 3/4". Here's a link for the tool:

    Makita suggests that the hose needs to go over the dust extractor port, so that means that the hose connecting to it needs 3/4" ID.

    The HD1200 hose has a 2.5" port and I can buy from home depot various adaptors that could bring this to 1.25" (

    I'm trying to figure out a way to plug the HD1200's hose into the dust extractor but cannot find the right adaptor. Anyone can offer advice?

    Would this work? - suggests this is 1" OD at the end, but no suggestions as to what ID this is.

    I also looked into flexible couplings, but could not find anything suitable.

    Thanks in advance!

  • #2
    You are not alone regarding the dilemma of mating tools to the dust collector.

    Rockler tools does offer some adapters but they are expensive!
    Other options to try: Fernco fittings and make your own adapter....they are in the plumbing department.
    Another option is to look at swimming pool hoses and fittings as they too are unique sizes and diameters!
    PVC pipe and ABS pipe are additional options and you can ream to the size you want.

    Ridgid tools from my 18v and corded collection range from 1 3/8" to 1 7/8" diameter to ones that use a dust collector that
    may allow a 2 1/4" or 2 1/2" hose connection directly such as their 18v 5" orbital sander.
    The Ridgid belt sander and 1/4 sheet sander is an odd size! grrrrrrrrr!!!

    Many of the standard adapters are 1", 1 1/2", 2" and so on......

    When and if you find a solution please return here and share your results as there many here with the same

    Cactus Man


    • #3
      Thanks! I've looked online at Fernco fittings, but could not find any sizes that would match. I should take my lazy *** to the hardware store and look at what they have. My works are actually only beginning in a couple of weeks, so I should be doing that in the next couple of days.

      I might juy buy the makita hose that is designed to fit on the dust collector (, but I find the price ridiculously high for essentially what I think is just the equivalent of a coupling.


      • #4

        so I bought this RIDGID adaptor ( and it seems to work just fine with the makita vacuum cover.

        good stuff !


        • #5
          copper pipe, plumbing reducers, or even plastic pipe, possibly a orange cone, cut down to the sizes you need.

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