<p style = "box-sizing: border-box; margin: 0px 0px 10px; line-height: 1.5; font-size: 14px; color: rgb (102, 102, 102); font-family: Helvetica, Arial, sans-serif; background-color: rgb (255, 255, 255); "> Cylindrical model of excellent quality. Easy to clean. Recommended for larger barrels. </p> <ul style = "box-sizing: border-box; margin: 0px 0px 20px; padding: 0px 0px 0px 1.5em; color: rgb (102, 102, 102); font-family: Helvetica, Arial, sans-serif; font-size: 14px; background-color: rgb (255, 255, 255); "> <li style =" box-sizing: border-box; line-height: 1.5em; "> For 500-1000 l drums </li> <li style = "box-sizing: border-box; line-height: 1.5em;"> dimensions (u00d8 x H): 14 cm x 24 cm </li> <li style = "box-sizing: border-box; line-height: 1.5em; margin-bottom: 0px; "> Suitable for an opening of 23 mm </li> </ul> <p style = "box-sizing: border-box; margin: 0px; line-height: 1.5; font-size: 14px; color: rgb (102, 102, 102); font-family: Helvetica, Arial, sans serif; background-color: rgb (255, 255, 255); "> <span style =" box-sizing: border-box; font-weight: 700; "> How does an airlock </span> <br style? = "box-sizing: border-box;" /> Because of the bung &nbsp; <span style = "box-sizing: border-box; font-weight: 700;"> half-filled with water </span> &nbsp; is, it acts as a kind of siphon closes the wine or the beer in the fermentation vessel from the outside air. </p> <p style = "box-sizing: border-box; margin: 0px; line-height: 1.5; font-size: 14px; color: rgb (102, 102, 102); font-family: Helvetica, Arial, sans serif; background-color: rgb (255, 255, 255); "> This can penetrate from the outside no bacteria; The produced during the fermentation carbon dioxide, however, can escape as a result of the overpressure <br style = "box-sizing: border-box;". /> <Br style = "box-sizing: border-box;" /> Tube models are the cheapest, but they can be poor clean than the cylindrical versions. </p> <p style = "box-sizing: border-box; margin: 0px; line-height: 1.5; font-size: 14px; color: rgb (102, 102, 102); font-family: Helvetica, Arial, sans serif; background-color: rgb (255, 255, 255); "> When a capacity of the digester by more than 50 l, the use of cylindrical models necessary because of the increased release of carbon dioxide <br style =" box-sizing: border- box;" /> <Br style = "box-sizing: border-box;" /> The water in the airlock evaporated: a regular check is the water level and topping up necessary </p> <p style = "box-sizing: border-box; margin: 0px; line-height: 1.5; font-size: 14px; color: rgb (102, 102, 102); font-family: Helvetica, Arial, sans serif; background-color: rgb (255, 255, 255); "> The airlock can also with a disinfecting solution instead be filled by ordinary water </p>