S-Shape Air Lock Twin Bubble Fermentation Wine Making When wine was ferment generated bubbles through the exhaust discharged to buckets outside Specification Fill water into the exhaust , insert to the cover of the brew barrel or rubber plug on the top of the fermentation container, cover with the lid. Material: Plastic After sterilized adding water to the exhaust . Color: Transparent Function:Isolate the air from the wine/, discharge , flying into the wine/ Size for manual measurement, there may be a 0 to 1 cm error, belongs to the normal phenomenon. Size: See the picture Application: juice fermentation, such as white wine fermentation, red wine secondary fermentation, back-flush into the fermentation during ambient temperature changes in the room.This style airlock is typically used on fermenters up to 20 Gallon. Please use boiled water to boil and the Air Lock before you using it. And clean it with water after using. All the fermentation process is in normal temperature automatic fermentation exhaust without manual control. 1x S-Shape Air Lock with snap-on caps After both sides of the exhaust valve's water in the state, gently insert the brewing bucket lid. Can be used for home-brewed , wine, cider and other uses. Size For Manual Measurement, There May Be A 0 To 1 Cm Error, Belongs To The Normal Phenomenon. Can Be Used For Home-brewed , Wine, Cider And Other Uses. When Wine Was Ferment Generated Bubbles Through The Exhaust Discharged To Buckets Outside 1x S-Shape Air Lock With Snap-on Caps S-Shape Air Lock Twin Bubble Fermentation Wine Making