GE FXHSC Whole House Water Filter | Replacement for Water Filtration System | NSF Certified: Reduces Sediment, Rust & Other Impurities from Water | Replace Every 3 Months for Best Results | 1 FilterWhole home filtration system: Filtered water for your whole home Includes one filter: Compatible with GXWH40L, GXWH30C, GXWH35F, GXWH38F, GNQH38S and most systems with 10" x 4. 5" filters NSF Certified: Certified to reduce chlorine taste and odor, sediment, sand and rust in your water, appliances and plumbing fixtures Three month filter life: For best filtration results, filters should be replaced every three months or 30,000 gallons