Wingnut for BB9 Black Berkey Filter Element - 1 pair
- Custom Food Grade BPA/BPS free plastic wingnut used to secure the Black Berkey Purification Element in the upper chamber
- Each set of black Berkey elements comes standard with a wingnut; in case of loss or damage, this wingnut set can be used to replace the original wingnuts
- This wingnut is only for use with the BB9 Black Berkey Filter Elements and is used with the Black Berkey Element washer
- Wingnut is not interchangeable with the white Super Sterasyl Ceramic filter wingnut