GE Household Replacement Filter - FTHPMGuaranteed fit Compatible with select GE Whole Home Filtration Systems, including GXWH50M and GXWH70M Basic filter Reduces sediment, sand and rust 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 Features Filters down to 30 microns The lower the microns, the more contaminants are caught and reduced Whole home filtration Filtered water at