Pre-drilled made to fit airlockCarbonates your beer overnight2 micron
2 micron air stone. Great for aeration systems and building your own carbonating lid!, pre-drilled made to fit airlock, carbonates your beer overnight, 2 micron, country of origin - United States, manufacturer name - Midwest Home brewing and Winemaking Supplies.
Brand: Midwest Homebrewing and Winemaking Supplies, Model: 12184, Color: Silver, Size: 1