EcoPure Reverse Osmosis Under Sink Replacement Water Filter Set (ECOROF) | NSF Certified | Fits ECOP30 System | 6-Month Filter Life COMPATIBLE: Designed for use in the EcoPure ECOP30 Reverse Osmosis Undersink Water Filtration System and Kenmore Reverse Osmosis Systems 42-38156 and 42-38556 6-MONTH FILTER LIFE: For best filtration results, filters should be replaced every six months, as recommended PREMIUM PROTECTION: Certified by the National Sanitation Foundation (NSF) to reduce numerous contaminants, including sediment, chlorine taste & odor, cysts, lead, chemicals, and total-dissolved solids EFFICIENT: Encapsulated filter design means water filter changes are quick and mess-free. No tools required. No need to shut off water supply. No touching dirty filters. HELPFUL: Faucet light tells you when its time to replace your filters. Still want filter-change reminders? Text EcoPure to 444999 to sign up. Questions? Our lifetime technical support staff is availablecall the EcoPure helpline at (800) 693-1138 or visit ecopure.com