NPT Threaded .5 Micron Oxygenation Stone for Inline Oxygenation – $15.99, Save $9 at Brew Hardware

STAINLESS OXYGEN (O2) .5 MICRON DIFFUSION STONE WITH 1/2" NPT THREADS

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From the product description, check product page for current description, price and availability:

Diffusion Stones, or ‘Air Stones’, are commonly used to aerate wort before fermentation, which helps ensure a healthy start to the fermentation process. Diffusion Stones can be attached to compressed oxygen tanks or air pumps (such as those used with aquariums). This “Stone” is made of stainless steel, so it’s durable, easy to clean, and won’t crumble in your wort after a few uses like other materials! This 1/2 Micron stone produces very small bubbles, which are ideal for efficient absorption of the gas into your wort. However, it takes more pressure to force air through the smaller pores. This is not a problem when using compressed oxygen, but lightly-powered air pumps may not work well.
It’s important to clean and sanitize diffusion stones thoroughly before each use. And it helps to clean the stone immediately after use as well. Boiling the stone for at least 5 minutes in clean water is the only reliable way to clean and sanitize it completely. It’s important to make sure the air being fed into the stone is clean, to prevent contaminants from clogging the stone or infecting the wort. Ensure a clean air source or install an air filter. Avoid touching the porous surface of the stone to prevent any of the pores from becoming clogged.

The most common use for this specific stone is to build an inline oxygenation assembly where the stone is threaded into a 1/2″ NPT TEE so chilled wort passes the stone on the way to the fermenter. It’s important to limit the flow of oxygen in this setup to avoid over saturating the wort.

The barb size is 1/4″ so you can use 3/16″ or 1/4″ ID tubing.

 

As of this posting, this is on sale for $15.99.  Please note that product prices and availability are subject to change. Prices and availability were accurate at the time this post was published; however, they may differ from those you see when you visit the product page.  Check the product page for current price, description and availability

STAINLESS OXYGEN (O2) .5 MICRON DIFFUSION STONE WITH 1/2″ NPT THREADS

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