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Oxygen Stone - 0.5 Micron (Flare Threads)
KEG591
In Stock
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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 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 .5 Micron stone is more commonly used for carbonation. However it can be used pre-fermentation with an O2 tank and regulator for oxygenation. Not the ideal choice if you want to aerate with an oxygen pump (aquarium pump) - use KEG590 for aeration. And if you are looking for a neat, all-in-on complete system for carbonation check out our Carbonating Keg Lid.

Item # KEG591
Shipping Eligible for Free Shipping Program
Availability California - In Stock
Pennsylvania - In Stock
Weight 0.10LBS
Community Q&A

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Browse 2 questions Browse 2 questions and 5 answers
Why did you choose this?
MoreFlavor Store
To replace a broken one on my in-line oxegenator
Robert F on Oct 8, 2018
Mox Lines
Sergio M on Feb 28, 2018
To replace a broken one on my in-line oxegenator
Robert F on Oct 8, 2018
extending diffuser into large tank
john m k on Jul 19, 2018
Mox Lines
Sergio M on Feb 28, 2018
want to drink beer fast so carb stone is improtant
David B on Feb 6, 2018
extending diffuser into large tank
john m k on Jul 19, 2018
want to drink beer fast so carb stone is improtant
David B on Feb 6, 2018
could you please let me know what size is the thread? 3/8? 1/2? thanks
Diego Testa on May 7, 2018
BEST ANSWER: Those are 1/4 flare fittings. very common item. you can usually find them in the combination of a Nut & Stem/hose barb.
Reviews

4.8 / 5.0
9 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
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Get the 2 micron stone
I had two of these blow the sintered stone off the stainless steel fitting when I (slowly) increased the pressure until fine bubbles started emerging from the stone. Fortunately, B3 replaced one. Get the 2 micron stone instead. You will need less pressure to get the stone to emit bubbles.
October 1, 2018
Purchased
1 month ago
Works great!
This is my second one I have purchased. First one lasted many years. Don't put in a pot of boiling water and forget it. I left mine in until it boiled dry and it separated the threads from the stone. That is not a fault of the product, mutual my mistake.
March 12, 2018
Purchased
7 months ago
Works great for oxygenation!
I have used this for about a year, and it works great. It does take a bit of pressure to get through the small holes, but makes fine bubbles for better contact area. I use it inline with my plate chiller, and about 20 feet of tubing before it reaches my conical. I boil to clean, and sterilize before I use. Mount makes it easy to remove for cleaning. Just don't boil it dry, and make the sintered part separate from the mount part, like I did one time.
June 12, 2014
Great for oxygen tanks
I got the .5 instead of the bigger one , because I'm pushing pure oxygen into the wort. I decided it was important, after reading a lot on yeast and fermentation. I use 1 liter per minute Oxygen in my fermenter. After use I boil for a half an hour in a tiny pot. mUST keep it clean!!! You'll thank yourself!
May 22, 2014
Response from MoreFlavor
Was debating between .5 and 2.0 micron for O2, but it seems the .5 is marketed for carbonation while the 2.0 is marketed for O2. Is that not what your research indicated?
December 14, 2017
graymoment
Response from MoreFlavor
Was debating between .5 and 2.0 micron for O2, but it seems the .5 is marketed for carbonation while the 2.0 is marketed for O2. Is that not what your research indicated?
December 22, 2017
graymoment
Easy to Use
Screw on / Screw off and keep clean. Great product
May 18, 2014
Replacement stone
I bought an oxygenating kit took my stone off to sanitize it and lost it, so I ordered this one and it works great.
May 10, 2014
great Product
Great product the only one I found that I could add a 1/4" SS tube by regards the the flare fitting. Works perfect for my system, also doubles up as a quick easy disconnect for a carbing stone.
May 28, 2013
Response from MoreFlavor
I've been trying to figure out how people are using this with the 1/4" flare fitting. If with a swivel nut, the only 1/4" swivel nut flare fittings that I've seen in existence have chrome plated brass for the nut, with stainless steel only being the barb portion.
December 14, 2017
graymoment
Response from MoreFlavor
I've been trying to figure out how people are using this with the 1/4" flare fitting. If with a swivel nut, the only 1/4" swivel nut flare fittings that I've seen in existence have chrome plated brass for the nut, with stainless steel only being the barb portion.
December 22, 2017
graymoment
Better Equipment = Less work
This product works great and is easy to clean & store.Used to use an aeration stone from an aquarium, what a pain, and for a low price it's deffinitely a better way to good.
May 24, 2013
Diffusion Stone - .5 Micron w/ Flare Threads
I've been looking for a diffusion stone that makes it easy and effective to sanitize the stone and the hose. This helps me accomplish that.
May 1, 2013