Dimensions Guide

Features
Four-stage purification 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.
Codes/Standards
Filter head automatically turns off water supply when cartridge
is removed.
CSA B483.1
NSF/ANSI 42
Postage-paid recycling program for used cartridges to reduce
solid waste to landfills.
NSF/ANSI 53
NSF/ANSI 58
Requires Kohler RO-compatible beverage faucet with air gap.
NSF/ANSI 401
For cold water use only.
NSF Protocol P231
Material
KOHLER
®
Water Filter Systems
Five-Year Limited Warranty
High-impact plastic construction.
Installation
See website for detailed warranty information.
Under-sink.
Quarter-turn twist cartridge for easy installation and
replacement.
Recommended Products/Accessories
K-22156 Reverse osmosis (RO) replacement membrane
K-22159 Reverse osmosis (RO) replacement filter 3-pack
Included Components
Additional Components:
K-22156 Reverse osmosis (RO) replacement membrane
K-22157 Reverse osmosis (RO) sediment pre-filter replacement
K-22158 Reverse osmosis (RO) carbon block CTO filter
K-23334 Reverse osmosis (RO) carbon block VOC filter
1-800-4KOHLER (1-800-456-4537)
Kohler Co. reserves the right to make revisions without notice to product specifications.
For the most current Specification Sheet, go to www.kohler.com.
3-3-2020 05:24 - US/CA/LM
Aquifer
®
Reverse osmosis (RO) water filtration system
K-22155

Summary of content (2 pages)