
Reverse osmosis (RO) carbon block CTO filter
Features
•
Reduces chlorine taste and odor and protects the RO
membrane.
•
Filter head automatically turns off water supply when cartridge
is removed.
•
Replacing RO carbon block VOC filter every six months keeps
filtration system performing effectively.
•
Postage-paid recycling program for used cartridges to reduce
solid waste to landfills.
•
For cold water use only.
Material
•
High-impact plastic construction.
Aquifer
K-22158
®
Installation
•
Under-sink.
•
Quarter-turn twist cartridge for easy installation and
replacement.
Codes/Standards
CSA B483.1
NSF/ANSI 42
KOHLER® Water Filter Systems
Five-Year Limited Warranty
See website for detailed warranty information.
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.
3-6-2020 06:20 - US/CA/LM

Ø 2-7/16"
(62 mm)
Ø 2-1/4"
(57 mm)
13-9/16"
(344 mm)
Aquifer
®
Reverse osmosis (RO) carbon block CTO filter
K-22158
Technical Information
All product dimensions are nominal.
NoDrain included:
Notes
For cold water use only.
To ensure the filter continues to reduce
contaminants effectively, it is recommended that
the filter gets replaced every 6 months.
Application guideline/water supply parameters:
Water Pressure: 40-100 psi (276-689 kPa) Water
Temperature: 40-100°F (4.4-37.8°C)
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.
3-6-2020 06:20 - US/CA/LM