People like to make wine at home. So, it is quite a necessity for them to prepare professional making equipment. An exhaust device is also important for wine making. We'd like to introduce this S-Shaped Air Lock Wine Seal Valves Grommet Homebrew Beer Fermentation Wine Making to you. It is ultra lightweight, with the adoption of premium plastic material. It is a sort of superior air lock, with greater efficiency. Rather practical in use!<!--Features --><p>FEATURES</p><ul><li> New and high quality</li><li> Use single seal valves principle, this principle can be effectively cut off the outside air oxidation of the fermentation medium</li><li> All the fermentation process is in normal temperature automatic fermentation, exhaust</li><li> Without manual control, simple and easy to use</li><li> Support repeated use</li></ul><!--Specifications --><p>Specifications</p><table width="100%" border="0" cellpadding="0" cellspacing="0"><tbody><tr><td width="131"> Material</td><td width="365"> Plastic</td></tr><tr><td width="131"> Color</td><td width="365"> White</td></tr><tr><td width="131"> Dimensions</td><td width="365"> (0.67 x 0.39 x 0.39)" / (1.7 x 1 x 1)cm (L x W x H)</td></tr><tr><td width="131"> Weight</td><td width="365"> 0.46oz / 13g </td></tr></tbody> </table><!--Package Includes --><p>Package Includes</p><ul><li>1 x Wine Seal Valves</li></ul><!--Extra Info --><!--produts_compatibility -->