Kohler Cinq Filtered Showerhead 2.5 GPM (K33631-Y Series)Round single function filtered showerhead, 2. 5 gpm When it comes to your water, we believe less is more. The Cinq single function filtered showerhead features our five layer Aquifer KDF 55 filtration system so you can soak in only the good, effortlessly. Water flows through multiple layers including activated carbon to deliver less chlorine, chemicals, and scale so you can experience more radiance, confidence, and that perfect glow for your hair and