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Oxygen Stone - 2 Micron (Flare Threads)
KEG590

Oxygen Stone - 2 Micron (Flare Threads)

THIS ITEM IS ON BACKORDER
Item currently out of stock
Description

New! Easier to Sanitize Design
This innovative design was the result of customer feedback about the difficulty of santizing our traditional barbed stone when tubing was attached. We added threads instead of a barb and now you can use the fittings you see at the bottom of this page to connect and disconnect your tubing. This allows you to place the carb stone by itself directly in a pot of boiling water to sanitize. Easy.

316 Stainless
1/2" diameter. Stone is 1" in length. Overall length is 1 7/8"

To Sanitize
To properly sanitize your stones, we recommend you run it in a sanitized solution for 5 minutes. If the stone becomes clogged we recommend boiling the stone for 1-3 minutes to help break down anything within it.

Important Notes
You do not want to touch the stainless stone portion with your hands. The oils on your fingers can actually clog the small pores in the stone.

The stone does not come with the barb fitting or flare nut - those will have to be purchased on their own. See the Related Items below.

The 2 Micron size is more commonly used for aeration or oxygenation pre fermentation, but can be used to carbonate beer. If you wish to use an aquarium style Aeration Pump to pump air through this stone we recommend a "deep water" type for aquariums, as these will have the necessary PSI to force the air through the stone and into the wort. If you are looking for a ready to use package check out Complete Aeration System. Thank You!

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Community Q&A
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Browse 2 questions Browse 2 questions and 5 answers
Why did you choose this?
MoreFlavor Store
Old stone is getting clogged
Dimitri K on Dec 3, 2021
To oxygenate my wort
Don Tupper on Jun 9, 2020
Old stone is getting clogged
Dimitri K on Dec 3, 2021
replacement for my aeration system
Westley E on Oct 8, 2021
To oxygenate my wort
Don Tupper on Jun 9, 2020
What I was looking for
David G on Jan 14, 2020
.5 micron too tough to push oxygen through
Craig H on Oct 7, 2019
Because of the threads (vs barbed)
Tim G on Jan 15, 2019
I've used one of these steel stones for years with the O2 bottle connector, and it's the best way to oxygenate wort/must that I've used to date. I just decided to get a spare.
Martin T on Jul 25, 2018
I liked the thread. However to really complete the set up they should also sell a 24" tube to match up with this.
Daniel G on May 8, 2018
need a replacement
Willem F on Mar 21, 2018
To aerate my wort. The 0.5 clogs up too much, so I'm switching to 2 micron
Bryon D on Feb 26, 2018
replacement for my aeration system
Westley E on Oct 8, 2021
What I was looking for
David G on Jan 14, 2020
Does the stone portion UNSCREW from the flare fitting? If so, what is the threading on the male portion that it would unscrew from? I'm hoping is it 1/4" male NPT
Jim Spaulding on Jan 11, 2019
BEST ANSWER: No, mine appears to be an integrated unit. I boil mine for sanitation before use and never turn off while in wort. Don't want anything soaking into stone but H2O.
Can you attach a carbonation stone (e.g., KEG590) if you remove the barb?
George Randels on Feb 29, 2024
Diffusion Stone - 2 Micron w/ Flare Threads
Diffusion Stone - 2 Micron w/ Flare Threads
Carbonation and Line Cleaning Ball Lock Quick Disconnect (QD) Cap - Stainless
Carbonation and Line Cleaning Ball Lock Quick Disconnect (QD) Cap - Stainless
BEST ANSWER: No, the cap’s internal fitting is not a flare. Get a stone with a barb and connect with tubing…, or get a barb with a flare fitting and attach to the one you pictured.
Reviews
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4.5 / 5.0
11 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
8
2
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1
Rated 1 out of 5
Test yours before using!
I let my old aeration stone grow mold (my fault). I purchased a new one and air leaks where the stone is attached to the flare threads. No air actually makes it through the stone. Morebeer was great and sent a free replacement. Last week I got my third free replacement and all three of them leak and are totally worthless. I commend morebeer for their customer service, they sent free replacements quickly and with zero hassle, but the product itself is flawed. I'm not sure if it's the current batch that has a manufacturing defect or what, but all three have just ended up in the trash.

Now I'm stuck with an aeration system without an aeration stone.
June 20, 2015
Response from MoreFlavor
Perhaps you realize this and the product is truly defective, but for the benefit of others who may not know...

With these metal-to-metal flare connections you're supposed to use a nylon washer (Morebeer part KEG602). The connection will leak air without one.

(Plastic ball lock fittings like KEG730 are an exception to this rule, because there's a bit of plastic incorporated into the end of the fitting itself.)
December 14, 2017
Aaron Costeines
Response from MoreFlavor
Perhaps you realize this and the product is truly defective, but for the benefit of others who may not know...

With these metal-to-metal flare connections you're supposed to use a nylon washer (Morebeer part KEG602). The connection will leak air without one.

(Plastic ball lock fittings like KEG730 are an exception to this rule, because there's a bit of plastic incorporated into the end of the fitting itself.)
December 22, 2017
Aaron Costeines
Rated 5 out of 5
Great way to oxygenate wort!
This stone works great. I turn on pure O2 for 30-60 seconds into the wort right before I pitch yeast. Has been working great for me. Clean it by boiling in water for about 10 minutes.
May 27, 2015
Rated 4 out of 5
Works great if you take care of it
I've owned two of these to use with my oxygenation system and if you take care of them, they'll work great.

I boil my stones to sanitize and remove any wort that may be trapped. If you don't boil them and leave them wet, they can grow mold. So make sure to let them air-dry after boiling.

But don't heat them dry! This will break down the glue that holds the stone to the MFL fitting cause it fall off. This happened to my first one.
May 6, 2015
Rated 5 out of 5
love the fitting setup
I have many of these, most are barbed. This however is my new go to. I love the fitting and ease of cleaning.
May 5, 2015
Rated 5 out of 5
Nice
Works great with O2 tank for aerating wort
May 5, 2015
Rated 4 out of 5
works as expected
works as you would expect. great for starters
May 5, 2015
Rated 5 out of 5
Awesome
They are made of very high quality. Definitely worth the money. The threaded end makes them simple to sanitize.
May 6, 2014
Rated 5 out of 5
Worked great
Used it in my in-line aeration project
May 29, 2013
Rated 5 out of 5
Good stone
I have really liked using this stone and love the threaded aspect. Easy to use.
May 13, 2013
Rated 5 out of 5
I love this!
perfect for aerating the wort before I pitch the yeast.
May 6, 2013
 
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