Bottled-Quality Water at Home: Stage 1 and Stage 3 RO replacement filters work together to deliver crisp, fresh drinking water by reducing a wide range of contaminants — no bottled water required Perfect Fit for EcoPure & Kenmore Systems: Designed specifically for the EcoPure ECOP30 RO system and Kenmore RO models 42-38156 and 42-38556 for reliable performance and flawless compatibility. Also compatible with Brita Total 360 BRDROS & Total 360 Systems Quick, Mess-Free Changes: Encapsulated twist-on design makes replacements simple — no tools, no shutting off the water, and no handling dirty filters. Just twist, replace, and enjoy fresh water 6-Month Replacement Cycle: For best results, replace filters every six months to keep your reverse osmosis system performing at peak efficiency and ensure consistently high-quality water NSF Certified Filtration You Can Trust: Reduces lead, chlorine taste and odor, sediment, cysts, chemicals, and total dissolved solids — giving your family cleaner, safer, and better-tasting water