<b>100% Brand New & High Quality</b> Food Grade 304 Stainless Steel 0.5 Micron Diffusion Stone<br><br><br> Features:<br><br> 0.5 micron diffusion stone = <b>high efficiency fermentation</b><br> Improve the wort fermentation process tremendously<br> Perfect for <b>carbonation</b> of Beer/ Soda/ Juice<br> Easy to clean & <b>Smaller Bubbles</b> & Keep Clean<br> 0.5 micron aeration stone are much more effervescent & frothy than traditional tool<br><br><br> Please Note:<br><br> 1. To <b>avoid getting clogged</b>, don't use your bare hands to touch the surface of aeration stone.<br>2. <b>Clean</b> the diffusion stone thoroughly before and after use.<br> 4. It is necessary to install an <b>air filter</b> to ensure the air goes through is clean.<br><br><br> Package:<br><br> 1 x Diffusion Stone<br> 1 x 20" Silicone Hose<br>