$7.99 Each
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Rockler 2-1/2'' to 2-1/4'' Conversion Port

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Rockler 2-1/2'' to 2-1/4'' Conversion Port Rockler 2-1/2'' to 2-1/4'' Conversion Port Rockler 2-1/2'' to 2-1/4'' Conversion Port
Rockler 2-1/2'' to 2-1/4'' Conversion Port

Connect your shop vacuum to benchtop tools like a band saw or chop saw or anything with a 2-1/2" OD dust port! The 2-1/2" ID fitting with rubber boot and included hose clamp seals tight on 2-1/2" ports like T- or Y-fittings on your dust collection system or a power tool dust port. The other side, a 2-1/4" ID fitting, quick-connects to the hose on your shop vacuum, making it easy to bring dust collection to every benchtop tool in your shop!

(1) Rockler 2-1/2'' to 2-1/4'' Conversion Port
More Information
Brand Rockler
Manufacturer Part Number N/A
Weight 0.3000
Tech Spec
  • Small Opening ID: 2-1/4''
  • Large Opening ID: 2-1/2''
Tech Docs N/A
Size 2-1/2"
Material Plastic
Type Adapter
Prop 65 WarningWARNING: Cancer & Reproductive Harm - www.P65Warnings.ca.gov

Prop 65 WarningWARNING: Drilling, sawing, sanding or machining wood products can expose you to wood dust, a substance known to the State of California to cause cancer. Avoid inhaling wood dust or use a dust mask or other safeguards for personal protection. For more information go to www.P65Warnings.ca.gov/wood.
4.6 / 5.0
29 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Secure and easy to use. Worked perfectly for my application.
May 25, 2018
5 months ago
Woodworking Experience:
have 3 now; fit is good to shop vac, no leaks
I have one for a shop vac to regular hose for the house, another for the wood shop to regular hose, and a third for the woodshop
dust separator bucket. The fit is just right with no apparent loss of suction.
April 27, 2018
6 months ago
Woodworking Experience:
Does exactly what I need it to in a convenient form.
Surprised more manufacturers have not had this idea and put it on amazon.
February 6, 2018
9 months ago
Woodworking Experience:
Works great for what I purchased it for
Recently I built me a router table like the deluxe router station that Norm built on the New Yankee Work Shop and this was the last part needed to complete the vacuum hook-up and it work great to clamp to the 2" pvc.
January 13, 2018
9 months ago
Woodworking Experience:
Holds well
Great solution for attaching shop vac to my planer
December 8, 2017
11 months ago
Woodworking Experience:
Perfect Solution
The perfect solution for connecting 2-1/2" hose to a blast gate. Especially with an E-Z Squeeze clamp, on and off quickly without full and the swivel makes maneuvering the hose easy.
October 5, 2017
Woodworking Experience:
just right
Just right for attaching hose to my portable Skilsaw tablesaw.
October 4, 2017
1 year ago
Woodworking Experience:
Perfect for my application!
I hunted for weeks for one of these! So glad I found it! It should be called a "2" PVC to 2-1/2" Shop Vac Adapter". I bought 2, one for the dust hood I built for my miter saw, and the other conveniently fit the exhaust port on my band saw! 2 Thumbs up!
August 31, 2017
1 year ago
Woodworking Experience:
Fit well
Used to connect my Dewalt thickness planer to the rockler dust separator. Good, proper fit.
June 20, 2017
1 year ago
port adapter
works perfect
April 6, 2017
over 2 years ago
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Browse 4 questions Browse 4 questions and 60 answers
Why did you choose this?
Rockler Store
setting up my CNC!
Daniel K on Sep 16, 2018
Need it to attach now vacuum hose (Sears Craftsman) to and old shop vacuum (also Sears Craftsman).
John B on Jul 30, 2018
setting up my CNC!
Daniel K on Sep 16, 2018
to connect separator hose to ridgid shop vac inlet port connector.
Burce C on Jul 31, 2018
Need it to attach now vacuum hose (Sears Craftsman) to and old shop vacuum (also Sears Craftsman).
John B on Jul 30, 2018
For adapting recently ordered "T" to my ShopVac hoses.
Michael F on Jul 28, 2018
same as other hose parts
Leonard S on Jul 13, 2018
different need different size ends, hence multiple end sizes.
J P on May 17, 2018
To adapt to my existing shop vacs.
Tom G on May 5, 2018
Need to reduce my 2.5 hose to 2.25 shop vac gates
Richard C on Apr 13, 2018
To connect my grizzly drum sander to my vacuum system.
Christopher S on Mar 12, 2018
vaccum system in dental lab
Keith R on Feb 26, 2018
what i needed easy to find with rockler
Clyde C on Feb 26, 2018
Have a few, use 'em all the time. Seems like I need another.
Mary D on Jan 24, 2018
I need one
Ray B on Dec 16, 2017
Because the Small Port Hose Kit is not made for today's shop vacuums from Craftsman, Rigid, Shop Vac that are making 1-7/8" or 2-1/2" hoses. And then I have to adapt from 2-1/2 to 1/7/8" with someone else's adaptor
David S on Dec 16, 2017
I have a new table saw.
Ramon G on Nov 29, 2017
Need it for dust collection
oscslane on Nov 21, 2017
Because it will fit what I wanted!
Debby T on Aug 18, 2017
A conversion port to hook up a hose from my table saw to my vacuum cleaner.
John S on Jul 21, 2017
William S on Mar 1, 2017
This so I can hook up my vacuum to my spindle sander
LINDA S on Feb 25, 2017
Needed to go from 4" to 2 1/2" Adapter and connect a Sears Wet/Dry Vacuum Hose.
Joe Rodriguez J on Feb 20, 2017
need it
Michael C on Jan 28, 2017
To make my 'universal' small port hose kit fit.
Joshua A on Jan 21, 2017
Shop Vac fitting
Robert B on Jan 18, 2017
To connect odd size Ridgid vac to dust collection systems / equipment
Bill B on Jan 10, 2017
Trying to get a dust-collection-shop-vac system optimized for my garage (work shop)
Stephen H on Dec 27, 2016
I have a dust right system and I am adding connections.
DENNIS K on Dec 13, 2016
This item is in my Hubby's wish list for his Birthday/ Christmas gifts. Easy shopping with no waiting in line at stores. Thanks Rockler!
Dulce W on Dec 12, 2016
I needed it to connect the "universal" small port hose kit to my shop vac hose.
Benjamin N on Nov 7, 2016
For new dust collection system
Frederick J on Nov 3, 2016
I'm trying to connect a shop vac hose to a dust collector I purchased at a yard sale.
Joe E on Sep 22, 2016
David D on Sep 9, 2016
To connect hoses to the T on parts of my dust collection setup.
Gary M on Aug 15, 2016
It fits my band saw
Daniel M on Jul 16, 2016
Needed them
Stephen C W on Jul 14, 2016
wanted it
Robert O on Jul 8, 2016
i need it and cant find it local
Mary H on Jun 14, 2016
Dust collection adaption
Tom L on May 30, 2016
I have multiple tools that needs this type if conversion.
Jose J on May 19, 2016
I needed this coupling
William D L on Apr 26, 2016
I'm setting up a new dust collection system in my home workshop.
Tom G on Feb 28, 2016
Building dust collection system
Dale on Feb 23, 2016
Donald B on Jan 20, 2016
Needed to adapt Hitachi compound miter saw dust port to dust collection system
Douglas V on Jan 19, 2016
needed to connect two hoses on your dust collection system
WILLIAM F on Jan 17, 2016
adapt shop vac from 2-1/4 to 2-1/2
Bill C on Jan 8, 2016
It should fit the dust collection tube on my Delta table saw
Scott D on Jan 4, 2016
create dust collection system
david M on Dec 26, 2015
To complete my whole shop dust collection system for my small equipment.
Philip M on Dec 23, 2015
Necessary attachment
Len L on Nov 27, 2015
to connect separator hose to ridgid shop vac inlet port connector.
Burce C on Jul 31, 2018
For adapting recently ordered "T" to my ShopVac hoses.
Michael F on Jul 28, 2018
Does this rotate/swivel or is it fixed?
Ron E on Apr 5, 2016
BEST ANSWER: I should add that although the hard plastic part can rotate withing the rubber sleeve, it doesn't move as freely as these two parts together: "Rockler 2-1/2'' Swivel Fitting for Shop Vacs" in "Rockler Dust Right® 2-1/2'' Rubber Union for Dust Collection."

Additionally, on occassion the plastic has come apart from the rubber when I had pulled the hose too hard. Easy to put back together, but if you want a more positive swivel connection, get the two parts.
will this work from a shopsmith vac to dewalt plainer?
roger on Oct 20, 2016
I can tell you the measurements of this adapter, which worked great for my Craftsman Sanding Table, but you'll have to check the exact measurements of your planer port and vacuum hose to see if they will fit. The Conversion Port's rubber flange with the hose clamp has a 2 1/2" inside diameter, so you'd want a 2 1/2" O.D. outlet from your planer. The hard plastic end of the Rockler adapter (which nicely swivels freely, by the way) has a 2 1/4" I.D., so your vacuum hose end should be 2 1/4" O.D.
My shop vac hose was too narrow, so I used Rockler's 2 1/2" Dust Hose #56647 with a 2.5" coupling # 36973. I hope this helps !
I have a 2 1/2" OD port and a 2 1/2" hose. Will this work as a quick connect? I'd place the hose on it permanently and slip it on and off the port. I can't find a specific product that describes that situation.
Brian on Mar 22, 2017
I struggled with this type of connection, too. The rubber part of this #49887 conversion port will be a loose fit over the outside of a 2 1/2" port, and it may be time consuming to change the clamp if you want to move it. I think you will want part #31660, 2 1/2" swivel fitting, which you can permanently clamp into both ends of your hose with hose clamps either #39482 or #29509. I found that these connectors on my hose will nicely slip into 2 1/4" I.D. fittings such as my shop vac intake and a 2 1/2" port or elbow from a stationary tool.
Hope this helps.