*Berkey BioFilm Drops™

*The Berkey Biofilm Drops™are made in the USA

• Berkey Biofilm Drops™ are used for storing and maintaining pure, fresh water
• Scientifically engineered and patented  Copper-Silver Ion solution in the defense of biofilm related bacteria in ceramic water filters, carbon (charcoal filters)  and water storage containers
• Especially formulated for use in harvested rainwater containers, long term storage water containers and for use in emergency preparedness and disaster relief
• May be used with any type of filter media but works best with Black Berkey® Purification Elements 
• Extends the shelf life of water being stored for up to 5 years
• Extends the time between element cleanings
• Eliminates the need to rotate stored water every six months and keeps your water fresh-tasting and odor-free
• Simple and easy to use
• Claims are based on independent testing and peer reviewed scientific research and have not been reviewed or evaluated or approved by the EPA