Berkey Big Gravity Water Filter vs GlacierFresh Stainless Steel Gravity Water Filter

Buy the Big Berkey if you need a filter that can make untreated water from lakes, streams or questionable supplies safe to drink, and if you want long filter life and a large reservoir. Buy the GlacierFresh if your water is already treated tap water and you want a certified, plastic-free countertop system with a lower entry point and a filter-life indicator. The Berkey is the more proven, more versatile purifier with far longer element life; the GlacierFresh is simpler and certified to NSF 42/53/401, but its cartridges are short-lived and owners report slow flow and no real drop in TDS.

• Choose the Big Berkey if you want a gravity purifier that can handle raw or questionable water sources, off-grid use and emergencies, with elements rated for thousands of gallons.
• Choose the GlacierFresh if you are filtering treated municipal tap water and want a certified, plastic-free stainless system with a filter-life indicator and a two-year warranty.