Skip to content

Craftsman 2-1/2 in. Muffler/Diffuser

Item# 00916993000P | Model# 16993 | Added on July 26, 2010 |
Sold by
Craftsman 2-1/2 in. Muffler/Diffuser
You can earn on this product: $0.15 in points
Add To Cart
Description Specifications
2-1/2-In. Muffler/Diffuser Tackles Two Annoyances At Once For those who love the power of a wet-dry vacuum but hate the noise and blow back, this Craftsman 2.5 inch muffler diffuser is just the thing. There will be no more blasts of air jetting out of the vacuum's exhaust to blow dust around in one area just as another is cleaned. This handy little add-on ensures that you won't create a mess in one area as you clean up another. The 2-1/2 inch muffler/diffuser curbs the noise problem, too. It installs quickly and easily - simply insert it into any vacuum with a 2.5-inch exhaust port. At less than a quarter pound in weight, it won't add bulk, keeping the vacuum as easy as ever to maneuver.

  • This Craftsman 2.5 inch muffler diffuser is just the thing for those who need the power of a shop vac but want to avoid noise and blow back
  • The muffler helps curb the massive flow of air that can exit shop vacs and end of creating more mess as quickly as another one is cleaned up
  • The part fits any Craftsman wet/dry vac with a 2.5-inch diameter exhaust port
  • The muffler is light weight, at only 0.17 pounds
  • It installs with a twist and removes just as easily
This product comes with:
Product Warranty
WARNING: California Residents - Proposition 65
Ratings & Reviews

Overall Rating:

(33 Ratings)
  • 5 Stars
  • 4 Stars
  • 3 Stars
  • 2 Stars
  • 1 Star
  • Read Reviews
Member Photos

Most Helpful Reviews:

By Skibum009
October 12th, 2014
Must have

This doesn't help too much with sound from my experience, but it is amazing for reducing the blower effect. When cleaning up my show the blower effect often pushed around dust that was behind me, meaning that I had to hit some areas twice. This fixes that problem.

5 found this review helpful
By 1st
September 3rd, 2014
Not a great product

I thought that this was a great idea when I purchased it. However, it is advertised as being a muffler and the noise reduction, which has always been an issue at our house, is minimal if anything at all. I can't hear any difference with or without it on the machine and that's my wife's vote also. The only thing it seems to do is slow the exhaust air flow down slightly.

5 found this review helpful
Reviewers may have received a benefit, like a sweepstakes entry or rewards program points, in exchange for writing a review.
Those benefits were not conditioned on the positive or negative content of the review.
Michael Boire
| Earned 69 community points in Craftsman

Doesn’t really work


Vacuum was still loud with this on. Not sure how it’s supposed to work unless it’s supposed to dull the pitch

October 12th
0 of 0 found this review helpful.
Join or Sign In to vote

Craftsman 2-1/2 in. Muffler/Diffuser


What you sent me differs from the picture of the item. There is NOTHING across the back end of the muffler/diffuser. This creates not just one but two problems. First off, it diffuses nothing! The exhaust air still just blasts straight out rearward without being diverted in multiple directions. Second, there is nothing to hold the foam insert in place. It gets shot right out the back the second the vacuum is turned on. What you sent me is a useless piece of junk.

July 20th
0 of 0 found this review helpful.
Join or Sign In to vote
| Earned 7 community points in Farm
December 21st
Harold Branstrator
| Earned 277 community points in Craftsman
November 5th

Great Accessory


This shop vac muffler/defuser is a must when vacuuming indoors. Less Noise and defuses the blower. No more dust flying around the house.

November 1st
0 of 0 found this review helpful.
Join or Sign In to vote
Questions & Answers (0)
Want to know something? Ask a question