Berkey Sight Glass Spigots allow you to see the water level in the lower chamber of a stainless steel Berkey water purification system without having to lift the top chamber.
There are 3 Sizes as follows:
- 19 cm (7.5 in) – use with the Travel Berkey and Big Berkey
- 25.4 cm (10 in) – use with the Royal Berkey and Imperial Berkey
- 33 cm (13 in) – use with the Crown Berkey