Instructions / Assembly
ENGLISH
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OPERATING SPECIFICATIONS
Pressure Range:  25–125 psi (1.7–8.62 bar) 
Temperature Range:  40°F–100°F (4.4°C–38°C) 
Rated Flow*:  10 gpm @ 1 psi drop (38 Lpm @ 0.07 bar)
* Rated flow without cartridge. Performance will vary with type of cartridge used.
PRECAUTIONS
Carefully read and follow instructions.
WARNING
Do not use with water that is microbiologically 
unsafe or of unknown quality without adequate disinfection 
before or after the system.
CAUTION
Filter must be protected against freezing, which can 
cause cracking of the filter and water leakage.
CAUTION
The rubber o-ring provides the water-tight seal 
between the cap and the bottom of the housing. It is important 
that the o-ring be properly seated in the groove above the 
threads of the housing or a water leak could occur. 
CAUTION
Because of the product’s limited service life and to 
prevent costly repairs or possible water damage, we strongly 
recommend that the bottom of all plastic housings be replaced 
every five years for clear and every ten years for opaque. If the 
bottom of your housing has been in use for longer than this 
period, it should be replaced immediately. Date the bottom 
of any new or replacement housing to indicate the next 
recommended replacement date.
CAUTION
Do not use electrical heating tape on this unit.
NOTES:
This filter housing does not include a filter cartridge.
For cold water use only. 
The contaminants or other substances removed or reduced by 
this water treatment device 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.
Do not install where system will be exposed to direct sunlight.
Filter cartridge life varies depending on filter type, usage, and 
water conditions.
The replacement filter cartridge used with this system has a 
limited service life. Changes in taste, odor, or flow of the water 
being filtered indicate that the cartridge should be replaced. 
Use only OMNIFILTER replacement cartridges.
This installation must comply with all applicable state and 
local regulations.
Use only Teflon
®
 tape without adhesive backing to seal joints. 
Do not use pipe compound (“pipe dope”), sticks, or similar 
compounds with this unit; they contain petroleum derivatives 
which will cause crazing and cracking of the plastic in the 
filter housing.
Use only soap and water to clean filter housing 
and components.
Do not use aerosol sprays (bug spray, cleaning fluids, etc.) 
near the filter. They contain organic solvents which will cause 
crazing and cracking of the plastic in the filter housing.
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After prolonged periods of non-use, such as a vacation, it 
is recommended that the system be flushed thoroughly. Let 
water run for 5-6 minutes before using.
Do not use a torch or open flame near the unit.
Some harmless bacteria may attack cellulose media cartridges 
(such as the TO1 or RS1). If your cartridge seems to 
disintegrate or develops a musty or moldy odor, switch to a 
synthetic media cartridge or consult the manufacturer.
Wear safety glasses during installation.
INSTALLATION INSTRUCTIONS
NOTE:
Please read all instructions, specifications, and precautions 
before installing and using this filter.
For installation on standard 1/2-inch or 3/4-inch main water 
line (galvanized, copper or plastic pipe).
Use only Teflon
®
 tape for fitting housing connections.
Install filter cartridge in filter housing according to the filter 
cartridge replacement instructions (page 4) before proceeding 
with installation. See Filter Cartridge Selection Guide on page 5 
to determine the best cartridge for your filtration needs. 
Install filter after water meter or pressure tank.
Numbered diagrams correspond with numbered steps. 
Installation
(A) Turn off cold water supply and (B) open nearest faucet to 
release pressure in pipes before starting installation. (C) Apply 
about 6-inches of Teflon
®
 tape in clockwise direction to pipe 
threads of each adapter. Install cartridge in OB1 or OB5 per 
filter cartridge replacement instructions on page 4.
(D) Align filter assembly with ends of pipe, making certain 
the water flow is in the direction marked on the cap. (E) Use 
integral bracket cap as a template to mark screw locations 
on wall. Insert mounting screws into wall. Leave a space 
between the head of the screw and the wall to slip bracket 
onto screws. 
NOTE: Allow 1
1
⁄2-inches (33 mm) clearance below housing to 
enable filter cartridge changes.
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Teflon
®
 is a registered trademark of IE DuPont de Nemours and Company, Corporation, Wilmington, Delaware
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