Instructions / Assembly
CALIFORNIA PROPOSITION 65 WARNING
WARNING:
 This product contains chemicals known to the 
State of California to cause cancer or birth 
defects or other reproductive harm.
SPECIFICATIONS
Temperature Range: ................................... 40-100°F (4.4-37.8°C)
Pressure Range:  ................................... 40-100 psi (2.75-6.89 bar)
Service Flow Rate @ 60 psi (4.1 bar):  ............ 1.25 gpm (4.73 L/min)
Rated Service Life:............................................................... 1 year 
Dimensions:  ......................................................12.25" x 3.5" x 4.8"
(311mm x 90mm x 122mm)
Weight (system only): ............................................ 1.6 lbs (0.72 kg)
PARTS INCLUDED 
•  Filter System with Cartridge
•  Installation Hardware Kit
•  3/8” white plastic tubing
•  3/8” blue plastic tubing
•  Filter change reminder sticker
•  (2) #10-16 x 1.25”L screws
•  3/8" x 3/8" Female compression tting
•  3/8" x 3/8" Male compression tting
PRECAUTIONS
WARNING:
 Do not use with water that is microbiologically 
unsafe or of unknown quality without adequate 
disinfection before or after the system. Chemical 
reduction unit.
CAUTION
 System must be protected against freezing, which can 
cause cracking of the lter and water leakage.
NOTE:
•  For cold water use only.
•  Make certain that installation complies with all state 
and local laws and regulations.
•  The system must be maintained according to 
manufacturer’s recommendations, including 
replacement of lter cartridges. The contaminants or 
other substances reduced by the selected cartridge 
are not necessarily in your water. Ask your local water 
municipality for a copy of their water analysis, or have 
your water tested by a reputable water testing lab.
•  After prolonged periods of non-use (such as during a 
vacation) it is recommended that the system be ushed 
thoroughly. Let water run for 5–6 minutes before using.
•  The lter cartridges used with this system have a limited 
service life. Changes in taste, odor, and/or ow of the 
water being ltered indicate the cartridge should be 
replaced.
TOOLS AND MATERIALS REQUIRED
•  Safety glasses
•  Adjustable wrench 
•  Tube cutter or utility knife 
•  Hand or electric drill (cordless recommended)
•  3/32" drill bit
•  File
•  Marker
 OMF1S Filtration System Instruction Manual • 3








