• Treats 330 Gallons
• Berkey Biofilm Drops are used for storing and maintaining pure, fresh water
• Extends the shelf life of water being stored for up to 5 years
• Extends the time between element cleanings
• May be used with any type of filter media but works best with Black Berkey Purification elements

 We are an authorized stocking dealer, so your Berkey order will actually ship the same or next day for FREE.  Check out our ratings and you will see that our both our shipping times and customer service scores cannot be beaten. Our only goals are to put a smile on your face, by shipping your New Berkey quickly.   

Berkey Biofilm Drops are used for storing and maintaining pure, fresh water Scientifically engineered and patented Copper-Siler Ion solution in the defense of biofilm related bacteria in ceramic water filters, carbon (charcoal filters) and water storage containers