3-Piece Airlock and #10 Rubber Stopper Set for Brewing & Fermentation Brand_Lallemand Use a sanitized hydrometer to

Use a sanitized hydrometer to verify fermentation is complete before bottling

will not read the alcohol levels of beer or wine

Note: Over tightening the airlock / orange bulk head can cause it to crack

Included: - O-ring - Poppet Valve

The best choice for large flasks

3-Piece Airlock and #10 Rubber Stopper Set for Brewing & Fermentation Brand_Lallemand Use a sanitized hydrometer toThis Airlock and Stopper Set is the standard fermentation venting solution for homebrewers and winemakers. The 3 piece airlock design is preferred for its ease of cleaning and ability to handle vigorous fermentations without blowing over. The #10 rubber stopper is the standard size for most 5, 6, and 6. 5 gallon glass carboys and several plastic fermenter models, providing a 100% airtight seal while allowing CO2 to escape safely. Sanitation Note: Fill