Berkey Water level indicator is a handy addtion to your Berkey, Its show how much water you have in the bottom compartment.
The come in a raneg of sizes to fit the different models.
Travel Berkey and the Big Berkey units use the 7.5"
Royal and Imperial Berkeys use the 10"
Sight Glasses for other models can be order on request.
Buy a Sight Glass as part of one of our bundles packages and save or email us for a special offer if your a returning customer