GE FXULC Drinking Water System Replacement Filter Single stage filtration: Water is filtered once Includes one filter: Compatible with GX1S01R filtration system and most systems with 9" x 2" filters Premium filtration: Certified to reduce lead, asbestos, select chemicals and 6 other contaminants Six-month filter life: For best filtration results, filter should be replaced every six months or 600 gallons