Lg Electronics LFX25974ST User Manual

Nominal Particulate Class I 
Particle size:  >0.5 to < 1 um

24,333

At least 10,000 particles/ml

915

96

≥ 85%

Chlorine taste and odor 
Class III

1.9

2.0 mg/L ± 10% 

0.07

96.4

≥ 50%

Capacity:  500 gal (1,892 L)

Note that while the testing was performed under standard laboratory conditions, actual performance may vary.

Use with replacement cartridge 5231JA2002A

This system has been tested according to NSF/ANSI Standards 42 for the reduction of the substances listed below.
The concentration of the indicated substances in water entering the system was reduced to a concentration less than or equal to 
the permissible limit for water leaving the system as specified in NSF/ANSI 42.

System tested and certified by NSF International against NSF/ANSI Standard 42 for the reduction of Chlorine 
Taste and Odor and Nominal Particulate Class III.

Application Guidelines/Water Supply Parameters

Service Flow

0.5 gpm (1.89 lpm)

Water Pressure

20 -125 psi (138 – 862 kPa)

Water Temperature

36 °F - 100 °F (0.6 °C - 37.8 °C)

To reduce the risk of property damage due to water 
leakage:
•  Read and follow. Use instructions before installation and 

use of this system.

•  Install on COLD water lines only.
•  Comply with all state and local plumbing codes. 
•  Install a pressure limiting device and water hammer 

arrester for inlet water pressures exceeding 80 psi (552 
kPa). Refer to Uniform Plumbing Code, Sections 608.2 and 
609.10).

•  Never install or operate where inlet water pressure may 

exceed 125 psi (862 kPa). 

•  Protect filter from freezing. Remove filter in temperatures 

below 33°F (0.6°C).

•  Replace cartridge at specified service interval. Cartridge 

MUST be replaced at least every 12 months. 

Manufactured for LG® Electronics by: 
CUNO Incorporateda 3M Company 400 Research Parkway 
Meriden, CT 06450 U.S.A. 
Telephone: 203-237-5541
Fax: 203-238-8701

For a replacement cartridge or for service 
contact your local dealer. 
You can also visit our website; www.lg.com 
or call 1-877-714-7486.

Do not use with water that is microbiologically unsafe or of 
unknown quality without adequate disinfection before or 
after the system. 
Systems must be installed and operated in accordance with 
manufacturer's recommended procedures and guidelines.
Warranty: See Warranty Card for Details.