Eliminates suck back during fermentation and cold crash.
Empty airlock protection; no suck back minimizes the chance of an empty airlock and air entering.
Transfer protection lets you keep the airlock on while transferring.
Specially developed for brewers.
Made out of FDA-approved food grade polypropylene.
With optional 65PPI activated carbon filters for the inlet; 16 pcs.
Fits most airlocks, blow-off-tubes, and fermenters.
