The Inline water filter cartridge fits BRITA 3-Way tap models: Titanium, Rosedale and Solo Nebula. The BRITA Inline cartridge reduces limescale, chlorine and impurities for fresh, clear, great tasting water Each Inline cartridge lasts approximately 3 months - that's 4 a year. Fits descreetly horizantally or vertically under the sink Can be exchanged in minutes tool free and without turning off your water. Each cartridge is recyclable, Manufacturer: Brita