Gravity Water Filter Sealing O-Ring

thingiverse

Flexible sealing ring for gravity water filters (such as Berkey). Goes on the outside between the upper and lower chambers after the filter is fully assembled. The main goal is to prevent tiny insects and dust from getting into the lower chamber. Can be covered in food-grade oil or silicone to provide air-tight seal. Originally designed for Big Berkey Water Filter (2.25 Gallons), but stretches well and should be able to fit other models just fine, given slight print scale adjustments. WARNING: Will decrease water flow when there's little water left in the lower chamber due to almost no air coming in.