Air Filter

These 0.2 micron s have a fine enough filter membrane that they can filter out microbes and bacteria.

They can be used with any oil free air compressor such as a pond pump, or other type of pump.

These can also be used as an airlock in the top of your fermenter, or to filter air going back into a cask when dispensing real ale.

This filter is not suitable for liquids and should be discarded if it gets wet.

Barb diameter measures approximately 9mm - 9.5mm.