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Hose Adaptor

Item #
20871
Rating:
84% of 100

Lets you easily and securely hook up a 4" hose directly to tools with a standard 2-1/4" port. Works with most benchtop tools.

(1) Hose Adaptor
More Information
Brand Rockler
Weight 0.2000
Tech Spec
  • Small end: 2-1/4" OD, 2" ID
  • Large end: 3-7/8" OD, 3-11/16" ID
  • Overall length: 3-1/4" (Large end is 1-5/8" long, small end is 1-1/2" Long, 1/8" separating ridge.)
Size 4"
Material Plastic
Type Adapter
4.2 / 5.0
18 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
13
1
1
1
2
Nice
Works as described
November 12, 2019
Purchased
3 weeks ago
Woodworking Experience:
Intermediate
Just what my router needed!
Exactly what I needed to adapt my router table and router.
September 29, 2019
Purchased
2 months ago
Woodworking Experience:
Intermediate
Perfect for my application
I needed an adapter for one of my router fences, and the offset design of this one addressed a clearance problem I had with the setup, so am very happy with it.
July 1, 2019
Purchased
5 months ago
Woodworking Experience:
Advanced
Works great to connect Ridgid R4512 table saw to Ridgid ShopVac
Too bad Ridgid didn’t think of it themselves, as most folks aren’t going to fork out $$ for a big 4” dust collection system if they are only buying a portable hybrid saw.
April 6, 2019
Purchased
1 year ago
Woodworking Experience:
Beginner
Adapter working well
The adapter is working well
March 26, 2019
Purchased
8 months ago
Woodworking Experience:
Intermediate
Dust free
I needed this to hook the dust collector to my router table.
March 17, 2019
Purchased
1 year ago
Woodworking Experience:
Intermediate
Fits fine
Works fine. Price was good.
August 19, 2018
Purchased
1 year ago
Woodworking Experience:
Intermediate
Works great!
Works great for the small dust port on my porter cable table saw!
February 7, 2018
Purchased
over 2 years ago
Woodworking Experience:
Intermediate
Step-down hose adaptor from 4" to 2 1/2" shop vacuum hose
This adaptor allows you to step down from a 4" outlet to the 2 1/2" shop vac size hose. It's a great way to keep a small garage workshop clean when you don't have the larger capacity 2 HP shop vacuum.
December 9, 2017
Purchased
1 year ago
Woodworking Experience:
Intermediate
It worked out very well
April 19, 2017
Purchased
over 2 years ago
Woodworking Experience:
Advanced
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Browse 3 questions Browse 3 questions and 36 answers
Why did you choose this?
Rockler Store
For a bench top router table
Steve M on Nov 5, 2019
Needed to connect 4” air handing hose to several 2.1/4 ID tool ports
James B on Sep 13, 2019
For a bench top router table
Steve M on Nov 5, 2019
need to connect two hose diameters
William B on Sep 16, 2019
Needed to connect 4” air handing hose to several 2.1/4 ID tool ports
James B on Sep 13, 2019
To fit my Bosch table saw, offset was required to fit.
Bill E on Apr 2, 2019
Just what I was looking for.
A C on Jan 26, 2019
It's what I need.
William Rush S on Nov 20, 2018
adapting 4" to a 2.5" port
Richard W on Aug 6, 2018
Needed a number of different size adaptors as I update my shop.
Bill F on Jul 26, 2018
To adapt new 2-1/2 hose to existing 4"
DALE E on May 29, 2018
They are good fits for my machinery.
Joel G on Feb 10, 2018
Using to add flexing hose from palm sander to dust collection
Randy C on Jan 8, 2018
Bc it fits the tool
Aaron B on Jul 7, 2017
to connect my central system to my shop saws
joseph spitz j on Mar 23, 2017
To connect 4" hose to various 2-1/4" tool dust output ports.
Mikel C on Mar 9, 2017
need new one for 6 inch sander
John M on Mar 1, 2017
Adapt a old band-saw dust port (2-1/4" OD), to my 4" dust collection hose
Alan S on Feb 22, 2017
adapt belt/disk sander to 4" dust collector hose
Gerald E on Feb 11, 2017
I NEEDED IT
DONALD D on Feb 5, 2017
hook up my dust collector
Gary W on Jan 16, 2017
Building a dust collection system in the shop.
Curt J on Jan 12, 2017
For connecting dust collection system
Frederick J on Nov 2, 2016
Made suction system, needed it to fit a jointer to the system.
DICK O on Jul 24, 2016
To reduce to smaller hose size for tools taking smaller hose.
Mike A on May 10, 2016
Building dust collection system for shop renovation
Matteo A on Apr 16, 2016
attachment to mobile sander
Lynn D on Apr 9, 2016
Need to connect router table to dust collection system.
Doug on Feb 23, 2016
Just in case.
Tommy R. S on Feb 2, 2016
building a vacuum system
Virginia L R on Nov 5, 2015
Blast cabinet 2"
Stephen M. G on Sep 18, 2015
need for band saw
toolman on Sep 7, 2015
needed adaptor
michael j on May 24, 2015
required for above
Donald C S on May 17, 2015
my son has a 4 inch dust system and needed away to hook up to the small port hose kit
Harlan K on Apr 30, 2015
fair price
doug s on Apr 22, 2015
need to connect two hose diameters
William B on Sep 16, 2019
To fit my Bosch table saw, offset was required to fit.
Bill E on Apr 2, 2019
Will this hose kit fit these adapters?
Aaron H on Dec 26, 2018
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Hose Reducers
Hose Reducers
are the adaptor measurements I. D. or O.D.?
Jerry on Aug 14, 2018
BEST ANSWER: read technical details
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.