At Kohler, we design our products to give you the right mix of functionality and style to bring comfort to your daily routines. The KOHLER Cinq showerhead replacement filter uses Aquifer filter technology and works with Cinq filtered showerheads. The Aquifer five-stage filtration system works hard to effectively reduce harsh chemicals that can strip your skin and hair. This replacement filter reduces odor and scale buildup in your shower, too.