Feel confident with every sip that you are providing the best quality water for you and your family. The Aquifer reverse osmosis (RO) water filtration system effectively reduces contaminants including arsenic, fluoride, TDS, bacteria, virus, lead, mercury, chlorine, and pharmaceuticals in your cold water. Install your Aquifer reverse osmosis filtration system with a KOHLER beverage faucet.

---

• Four-stage filtration system reduces contaminants such as arsenic, fluoride, bacteria, virus, lead, mercury, chlorine, chloramine, select pharmaceuticals, and more
• Reduces over 95% of perfluorooctanoic acid (PFOA) and perfluorooctane sulfonate (PFOS) in drinking water
• 1:1 ratio high-recovery reverse osmosis membrane creating less waste water
• Provides up to 27.5 gallons per day, or the equivalent of over 200 16.9-oz. bottles of water (results may vary based on water pressure, temperature and incoming water quality)
• 0.5 gpm (1.9 l/min) maximum flow rate at 60 psi (4.1 bar).
• 3.2 gallon storage tank
• Filter head automatically turns off the water supply when cartridge is removed
• Requires Kohler RO-compatible beverage faucet with air gap
• Includes four filter cartridges (K-22156, K-22157, K-22158, K-23334)

---

Additional Resources:
Spec Sheet
Installation Instructions
Parts Sheet

---

Recommended and Optional Accessories:
KOHLER K-22156 Aquifer Reverse osmosis (RO) replacement membrane
KOHLER K-22159 Aquifer Reverse osmosis (RO) replacement filter 3-pack
KOHLER K-22156 Aquifer Reverse osmosis (RO) replacement membrane
KOHLER K-22157 Aquifer Reverse osmosis (RO) sediment pre-filter replacement
KOHLER K-22158 Aquifer Reverse osmosis (RO) carbon block CTO filter replacement
KOHLER K-23334 Aquifer Reverse osmosis (RO) carbon block VOC filter replacement