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Diffusion stones, or 'air stones', are commonly used to aerate wort or artificially carbonate beer and other beverages. Diffusion Stones can be attached to compressed oxygen tanks, CO2 tanks or air pumps. It is composed of stainless steel and has a 2 micron stone with a 1/4in OD barbed fitting. Diffusion stones require a high pressure which is easily achieve with compressed gas or high-powered air pumps. However, low-powered air pumps may not work well. Do not handle diffusion stone with bare hands because oils and dirt from skin can clog the pores.
|Barbed Fitting Outside Diameter: