Air Lock Cap for Home Brew

thingiverse

The three-piece airlocks are an absolute game-changer, but the caps that come with them are alarmingly fragile. You have the option of purchasing a brand new airlock or simply forgoing the cap altogether, but when you do, spiders, fruit flies, and other unwanted critters start infiltrating your airlock fluid. Here's a budget-friendly solution that's incredibly easy to print.