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Mash King Tun With Trub Trap Bottom - 11.7 Gallon
False Bottom Mash King Cooler
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This Mash King Tun is a supersized 11.7 Gallon/43 Litre beast! The 17% volume increase over traditional coolers ensures you can brew what you want when you want it. Specially built and designed to handle the largest grain bills you can throw at it. Brewing a 1.09 original gravity brew? The Mash King Tun will easily handle it.

This Tun comes with The Trub Trap. Designed to fit perfectly and secure, not float around the bottom like other models. What makes this false bottom special is that it has custom sizing coupled with the silicone gasket, ensuring the tightest fit possible without the worry of scratching up the interior of your cooler. In addition, the false bottom is made out of strong 304 Stainless Steel and the legs allow it to sit 2 3/4" off the bottom of your cooler, and the handle makes removal a breeze.

The Mash King's inside dimensions are 19" x 13 1/4". With its outside dimensions(with lid) being 21 3/8" x 15 1/2".

False Bottom Diameter: 13 1/4"
Price: $158.99
Sale Price: $144.49
Save $14.50!

Availability: Usually Ships in 24 Hours


Mash King Tun with The Trub Trap Bottom

  • Made out of sturdy and lightweight plastic
  • 11.7 Gallon Capacity (43 Litres)
  • Massive capacity that is perfect for large-scale homebrewing
  • The handle is collapsible for easy storage
  • Improved lid, locks securely in place
  • All hardware is made from stainless steel for durability and hygiene

  • Mash King Cooler - 11.7 Gallon x 1
  • Stainless Steel 2-Piece Ball Valve - 1/2" Female NPT x 1
  • Stainless Steel Close Threaded Nipple - 1/2" NPT x 1
  • Stainless Steel Barbed Fitting - 1/2" NPT X 1/2" OD Barb x 1
  • Grooved Lock Nut x 1
  • Stainless Steel Washer - 7/8" ID x 1
  • Silicone O-ring x 1
  • Mash King Stainless Steel Cooler False Bottom x 1

Inside Dimensions:
  • 19" Height
  • 13 1/4" Diameter

Outside Dimensions (with Lid):
  • 21 3/8" Height
  • 15 1/2" Diameter

May we also suggest...
Mash King Trub Trap Cooler False Bottom - Replacement Gasket
Price: $10.99

The Trub Trap False Bottom Replacement Gasket

Average Customer Review: Average Customer Review: 3.5 of 5 3.5 of 5 Total Reviews: 12 Write a review.

  0 of 0 people found the following review helpful:
3 of 5 Bubble in walls September 4, 2020
Reviewer: Alan from Barrie  
Bought in March 2020

I currently have two bubbles forming inside the mash tun opposite each other. This is now making it difficult to place the false bottom inside the mash tun.
Hot water has never been beyond mashing requirements 167F, to compensate for cooler grain and mixing time to achieve 154F mash

I really liked the false bottom and I did read the reviews and was cautious about water temp.

The mash tun worked well for the first couple of brews before the bubbles started, now the false bottom sits on a angle.and will not fit into place.

Overall I am  disappointed with the longevity of the product and do not recommend.

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  0 of 0 people found the following review helpful:
3 of 5 Lamination issue/False bottom doesn't hold up July 29, 2019
Reviewer: Kevin from Georgetown, ON Canada  
I'm having the same issue with the bubble forming on the inside.  I can still use it, but if gets any worse the false bottom won't be able to be inserted/removed.  The handle and feet on the false bottom lasted about 3 brews before I had to get them reattached by a local welder - the factory spot welds simply don't hold up.  Make sure you scoop out as much wet grain as possible before removing it for cleaning to make it easier on the handle.  Aside from those issues it does its job.

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  0 of 0 people found the following review helpful:
5 of 5 So far so good January 13, 2019
Reviewer: Isa from QC  
I've brewed 5 batches so far and no problem to report. Does the job.

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  1 of 1 people found the following review helpful:
3 of 5 Lamination Issue July 12, 2018
Reviewer: Robert from Norwood, ON Canada  
After about 5 brews the interior has a lamination issue  to the exterior I now have a large bubble on the inside.  I contacted OBK, I was told its plastic don't put boiling water in it.  I have never put boiling water in it.  However MASH TUNS do expect MASH.  my brews call for 75 to 80'C degree HOT WATER to strike.  I am not impressed.

It is a great performer, just not for a long time.

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  0 of 0 people found the following review helpful:
5 of 5 Great Tun May 4, 2018
Reviewer: Will from Victoria, BC  
As far as cooler mash tuns goes this one is really good. We have done 20+ batches in this thing and haven't had any issues yet. It holds heat well and the false bottom is great. No stuck sparges yet. It does take a little work to figure out your water to grist ratio since the false bottom keeps about a gallon of water away from the grain. If you use brewing software like Beer Tools Pro or Beersmith you can factor this in and it makes batch to batch consistency much easier. The area where the valve is placed on the bottom is a little thin but this is to be expected with a cooler. It doesn’t leak so no complaints. This thing is also huge. Large enough for any 5 gallon batch well into the 1.100 gravity range. Also works for 10 gallon batches if the gravity is reasonable. Over great entry level setup for a great price.

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