Use the Duotight Flow Stopper while filling kegs, during keg to keg transfers, or fermenter to keg transfers to automatically cut off the flow when the keg is full. Simply attach this device to the output gas post of your keg, then when the keg is full it will prevent further liquid exiting the gas post.

Please note: exposure to chlorine will degrade the acetal plastic and stainless steel these fittings are made from. Do not use in contact with bleach or other chlorinated cleaning chemicals.