Ceramic filter cartridges filter sediment in water down to a coarseness of 0.0005mm (0.5 microns) and reliably remove bacteria, germs, spores, and viruses. Ceramic and activated carbon sediment filters are not washable and should be replaced approximately every six months (DIN 1988). To maintain consistent performance, the filter should not be used beyond approximately 8,000 liters, depending on the quality of the source water. The filter is vacuum packed and has no expiration date. It is compatible with all standard 10-inch (254mm) drinking water filtration systems. This is a replacement filter for 10-inch (254mm) countertop or undercounter water filters. Specifications: - Product Type: Replacement Filter Cartridge - Model: CRM-1A - Length: 10 inches (254mm) - Diameter: 70 mm - Inner Diameter: 27 mm - Filtration Medium: Ceramic - Filtration Rating: 0.5 microns - Maximum Flow Rate: 180 L/h at 20C - Operating Temperature Range: Up to 45C - Maximum Operating Pressure: 6 bar - Maximum Pressure Drop: 4 bar - Filter Efficiency: 99% - Weight: 0.250 kg Compatible with standard 10-inch (254mm) filter housings.