This GE Whole House Basic Filter reduces sediment and sand from your household water. Guaranteed fit - Compatible with select GE Whole Home Filtration Systems, including GXWH50M and GXWH70M. Whole home filtration - Filtered water at every tap Certified to NSF/ANSI 42 - Certified by IAPMO Three-month filter life - For best filtration results, filters should be replaced every three months or 15,000 gallons. Single pack - Includes one filter cartridge. Protect appliances & plumbing - Sediment reduction helps equipment last longer Filters down to 30 microns - The lower the microns, the more contaminants are caught and reduced