Mark II Corny Keg & Carboy Washer

Mark II Corny Keg & Carboy Washer

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Mark’s Mark II Keg Washer™ is designed to clean and sanitize large vessels like cornelius kegs and carboys. This keg cleaner is also intended to provide a sanitation container for miscellaneous items such as airlocks, thermometers, tubing, keg fittings, and more.

Quiet, Fun, & Easy to Use

  • Very quiet when in use and most importantly speeds up the process of cleaning and sanitizing.   
  • Light in weight.  Easy to store. 

Cleans Kegs

  • This keg washer cleans and sanitizes a cornelius keg without having to take apart the ball lock fittings, poppets, and dip tubes. You can clean the keg and the dip tube simultaneously using the T adapter.

Cleans Tubing Too

  • Cleans tube separately utilizing the pump with the additional barb fittings included. 

Cleans Parts

  • Reservoir holds 1.25 gallons of water making it easy to fill and empty with sanitizer.    
  • Saves water and sanitizer. 

The keg washer does not have an on/off switch, you can plug it directly into a wall outlet to operate the pump or plug it into an outlet that is controlled by a switch. Never leave the keg washer unattended when in use.

When in use, fill the keg washer up to about 1 inch under the brim. The pump is not self priming, so always make sure the basin is full of water before plugging in the pump.

Owner's Manual is included. Please read thoroughly before using. Dimensions of the inside of the washer's reservoir are: 6"L x 12"W x 4"D.

Please Note: Product does not include the bucket, carboy, or keg pictured above for display purposes.

The pump specs are:

  • 520 GPH
  • 120 Volts AC
  • 40 watts
  • Ceramic shaft, impeller
Item # KEG300
Shipping Eligible for Free Shipping Program
Availability California - In Stock
Pennsylvania - In Stock
Weight 7 LBS
Community Q&A

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Browse 8 questions Browse 8 questions and 77 answers
Why did you choose this?
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I'm a lazy, lazy man.
James B on Nov 11, 2021
recommended by friend
Nick H on Apr 29, 2021
I'm a lazy, lazy man.
James B on Nov 11, 2021
It appears to wash everything I use. Should simplify the wash/sanitizing process.
David on Sep 28, 2021
recommended by friend
Nick H on Apr 29, 2021
Easy cleaning
Nathan R on Apr 12, 2021
based on reviews
Doug Haviland on Apr 3, 2021
Ease of use
Kurt S on Feb 10, 2021
Cleaning kegs is time consuming.
Shawn K on Feb 7, 2021
Gift for someone
Nataliya A on Dec 17, 2020
This works great, this ones for my brother for Xmas
Rob C on Dec 13, 2020
gift request
jane o on Dec 10, 2020
hopefully helps washups
David P on Oct 28, 2020
Recommended by a friend
Jason C on Oct 24, 2020
thanks for the invention
Larry E on Sep 30, 2020
specifically to clean carboys more lazily (An probably better)
Matt A on Sep 29, 2020
I wanted a better method of cleaning kegs and carboys.
Mike F on Sep 24, 2020
I want to make my cleaning easier
Brian C on Sep 22, 2020
Trusted name. Bargain price. Free shipping
Don M on Aug 27, 2020
trying to see if it works well
michelle D on Aug 26, 2020
Fast way to clean carboys and other larger equipment
Clifford R on Aug 18, 2020
cleaning is the hardest part of brewing
randy l on Aug 13, 2020
Due to it's great reviews (and had an infection recently).
Mike Goetzke on Aug 11, 2020
Save water
Nicholas T on Aug 11, 2020
To wash the equipment more easily.
Sounds important
JOHN PAUL F on Jul 28, 2020
Already have one; if I get a second, I can do an assembly line of a PBW wash and then a rinse
Michael B on Jun 13, 2020
Brulosophy recommendation
Alec B on Jun 3, 2020
cleaning the keg
Marck K on Jun 2, 2020
I love clever technological solutions that make things easier. Worth a try.
Casey S on May 27, 2020
Good reviews
Gustavo Q on May 9, 2020
good reviews and brew a lot so needed a washer
Jessie L. M on May 9, 2020
Good reviews, looks convenient.
Marisa A on May 8, 2020
make cleaning more efficient
Patrick W on Apr 6, 2020
water saving method of cleaning
Christopher S on Feb 27, 2020
Because I am soo done with the gallon jars on our counter
Elizabeth M on Dec 20, 2019
On a wish list
Kathy L on Dec 16, 2019
LAURANN S. C on Dec 14, 2019
Christmas gift
Kristin B on Dec 5, 2019
I have many kegs to clean. Looks like a huge time saver.
Jason on Nov 12, 2019
Need an easier way to clean kegs
Lawrence W on Oct 29, 2019
The pump quit working with my washer so I have to replace the whole setup.
John T on Oct 28, 2019
Larry W. W on Jul 20, 2019
YouTube review by Short Circuited Brewers
Jason M on Jul 11, 2019
Seems like an easy way to clean!
Stephanie R on May 16, 2019
I spend hours washing and sanitizing bottles, buckets and fermenters. I want to save time.
Daniel S on Mar 24, 2019
A friend has one of these and it's amazing!
Michael B on Jan 14, 2019
looks like time saver
Leonard Maffucci on Oct 25, 2018
this thing works great!
Rob C on Oct 20, 2018
Tired of washing by hand
Rick G on Sep 28, 2018
Simplify cleaning
William Molyneux on Jul 30, 2018
Will be using these to wash sanke kegs until we can upgrade
Steven H on Jul 13, 2018
It appears to wash everything I use. Should simplify the wash/sanitizing process.
David on Sep 28, 2021
Easy cleaning
Nathan R on Apr 12, 2021
Does this work for 5 gallon glass carboys?
Ryan on Apr 30, 2020
BEST ANSWER: This keg washer absolutely works with 5 gallon carboys. All of the other answers here offered great advice as well, so please read all of their great contributions for lots of tips.
What is the wash cycle time? I assume you have to change out the cleaner and sanitizer between wash and sani.
Dennis Wiggins on Apr 17, 2018
BEST ANSWER: Cleaning and sanitizing is specified on the cleaner and sanitizer product's label of your choice. Contact time varies.

The MKII uses about 1 gallon of fluid for cleaning and I can usually clean about 2-3 vessels at a session. Just make sure you dump all solid matter first. I making a hot cleaning solution (>100° F) and wash each vessel for 30 minutes.

I have never used the MKII washer with sanitizing solution but would not recommend it as it would bubble up tremendously! I would suggest mixing a separate gallon of sanitizing solution and getting a chemical grade spray bottle to spray your vessels. 5 Minutes contact time is all you need for those products.

Do you know who could provide me with a replacement pump impeller assembly?
dave cobb on Mar 7, 2019
BEST ANSWER: Sometimes the impeller can stick. If you stick you finger in through the top you can move the impeller to free it up. Stick it back in the basin and plug it in. You should be good to go
Will the Mark II Corney Keg washer work with the torpedo style kegs or only the corny style kegs?
John H Truebger on Jan 30, 2019
BEST ANSWER: I have AEB and Kegland cornies and one Torpedo (that I don't like so won't get more) and the washer works fine with all 3.
Will this work with a fermonster?
Kyle Compton on Jan 9, 2019
BEST ANSWER: I don't see why it wouldn't work for your product. I use it for the Big mouth Bubbler, Which has about the same size top as your Fermenter, and for my Corney kegs and buckets. I would email Mark II and just ask. I emailed him for questions before and he will respond. Nice guy. Hope this helps.
Anyone find a way to use this on a Fermzilla All-Rounder?
Mike Goetzke on Jan 27, 2021
BEST ANSWER: I take the bottom valve section off and set it on my MARK II keg washer give it a turn every few minutes and it works well. You still have to take the top off and clean it and the butterfly valve, but most of the work is done by the MARK II
Anyone have an adapter to get this to work on a Fermzilla All-Rounder?
Mike Goetzke on Jan 19, 2021
BEST ANSWER: I just got the 30L All Rounder. I put a 6" PVC coupler aroind the standard carboy stand. The All Rounder then sits perfectly on the coupler, although you do have to do remove the handle. It works great, and looks cool, especially with a CIP ball.

4.3 / 5.0
95 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Rated 3 out of 5
works great until it breaks
A must have product for the kegging homebrewer - I've love the time and effort it's saved me. However, the little plastic tabs that hold the mounting bracket (for hold kegs and carboys are plastic and will eventually snap off rendering the unit nearly useless. Really needs a more robust design. Now I need to see how much a new tub and bracket cost and throw away my current broken ones (poor functional and sustainable design here).
November 7, 2021
Rated 4 out of 5
Time saver
Great device to clean all my different containers. I have made a few adapters to do 1 gallon bottles, but does everything else I have tried. This is a replacement for my original, because the small plastic tabs on the base, that hold the centering ring in place, broke off. I’d like to see a better connection device that is stronger. The plastic clips get fatigued from use. It did take several years for the first one to break, but when the second one broke it made it useless. Also the pump had a broken connection that I was able to epoxy back into place to make it work.
November 1, 2021
1 month ago
Rated 5 out of 5
Time and money saver
Should have bought this a long time ago! It will pay for itself by only using a fraction of PBW as before
June 30, 2021
6 months ago
Rated 5 out of 5
Why have I waited so long?
This makes a real deep clean to be done so easily.
I have looked at this for years and finally pulled the trigger.
I use so much less cleaner and sanitiser (I love it to give a good sanitiser rinse before storing too) than I used to.
My first keg cleaned was one I had been soaking with a cleaner - and would have thought cleaned and would have used.
I turned on the pump and was shocked to see the cleaning liquid got dirty, quickly.
I fully recommend this product.
October 7, 2020
1 year ago
Rated 5 out of 5
Makes this an easier chore to do
Gone are the days of "bending over the sink while holding heavy carboys". Gone are the days of balancing the carboy over the faucet jet to rise out the carboy you just struggled to clean with a bottle brush. It does take some planning to have them cleaned and ready for use. Each carboy needs the 15-20 min sanitizing wash with the Mark II. So time is part of the equation. That's the easy part. The machine does it beautifully. However there is NO getting rid of the bottle bush and "old school" cleaning if using carboys after fermentation. The lees settle and they do tend to stick to the side walls and bottom of the carboy. I tried to use the Mark II to clean in that situation. It did only a fair job. Residue still needed to be brushed out, but it was much easier to brush out as I believe the Mark II got most of it. I personally have to be sure the carboy has no residue from the lees before the sanitizing process. That said , it is still much easier to accomplish cleaning and sanitizing multiple carboys. I would recommend it.
September 24, 2020
1 year ago
Rated 5 out of 5
Just get one and have a better life
If you don’t have one of these, you are working to hard and your stuff probably isn’t that clean.
I should absolutely take 1 star away because there’s no power switch on the cord. Seriously just charge $2 more for the thing.
I love the design: one side is shaped like the end of the tub so you can slide it right under the faucet to fill up.
So fresh. So clean.
Rounded end fits the tub. Soak parts in the reservoir while you run it.
Sprayball purchased separately. Don’t bother. Works perfectly without it.
September 8, 2020
over 3 years ago
Rated 5 out of 5
Every Brewer Needs This
I always asked "Why do you need a Mark II when OxiClean soak cleans my plastic conical overnight?" Plus - looks like cheap plastic design. Due to all the great reviews when this went on sale I picked one up. Actually this thing is pretty well built and I like the fact that it comes with the tub. It is a very optimized design and stores in a small space when done. I also purchased a CIP and it screws on top of the standpipe easily. I will be cleaning my equipment more often and thoroughly with the help of the Mark II. Can't soak my stainless in Oxi so this is the perfect accessory ro clean everything. I'm even going to use it to clean my draft lines. Others say this saves on cleaning agent.
August 24, 2020
1 year ago
Rated 5 out of 5
Best Carboy Washer Ever.
This is by far the best carboy washer out there. Now to be fair i felt the nozzle on the end wasn't doing that great of a job so a put a CIP ball on it. I recommend this to anyone who knows the struggle of washing carboys.
July 26, 2020
over 2 years ago
Rated 4 out of 5
I made a washing and botteling station using the botteling attachment..I gave 4 stars because the water jets are prone to , misalignment,not a big issue..just an inconvenience
July 16, 2020
1 year ago
Rated 5 out of 5
Easy to use and good results.
May 29, 2020
1 year ago