General description Weeplow O'Pure 2 filters are designed to be compatible with Berkey® Gravity Water Filter Systems, providing exceptional filtration performance. These filters have been tested by independent laboratories in the USA, demonstrating their ability to eliminate up to 99.999% of harmful bacteria, including E. coli. They offer a cost-effective alternative to original Berkey purification elements while maintaining the same high-quality performance. Technical specifications Filter Size: Diameter: Approx. 57.15 mm Length: Approx. 247.65 mm Capacity: Each filter has a lifespan of 11,000 liters; a pair can filter up to 22,000 liters. Material: Made from high-quality activated carbon blocks derived from coconut shells. Compatibility and accessories Compatible with Berkey models: Big (8.5L), Light (12.5L), Royal (12L), Travel (5.7L), Imperial (17L), Crown (23L). Also compatible with Doulton Super Sterasyl and ATC Super Sterasyl series. Installation Replacing the filters is quick