Instructions / Assembly
Inlet/Outlet Connections: 1" MNPT (25 mm)
Nominal Flow Rate up to 10 gpm (37.85 lpm)
The OneFlow
®
+ system is an economical and environmentally
friendly physical water treatment technology that helps protect
pipes, extend the life of appliances, and provide better tasting
water through filtration. The OneFlow
®
+ system is a dual cartridge-
based system with a radial flow 20 micron carbon block cartridge
which reduces sediment, chlorine taste and odor, and an integrated
OneFlow
®
+ scale prevention cartridge.
The OneFlow
®
+ system uses template assisted crystallization (TAC)
to attract hardness minerals and convert them into harmless, inactive
microscopic crystal particles.
These crystals stay suspended in the water and are passed to drain.
The system requires very little maintenance, no backwashing, no salt
and no electricity. Typical hardness problems, especially build-up of
scale in heating elements, pipes, water heaters, boilers and on fix-
tures, are reduced**.
The OneFlow
®
+ system is not a water softener. It does not add
chemicals. It is a scale prevention device with proven third party labo-
ratory test data and years of successful commercial, residential and
foodservice applications. OneFlow
®
+ is the intelligent scale solution
and is a great salt-free alternative to water softening (ion exchange)
or scale sequestering devices.
Features
• Reduces sediment, chlorine taste and odor
• Chemical-free scale prevention and protection - converts hardness
minerals to harmless, inactive microscopic crystals making OneFlow
®
+
an effective salt-free alternative to ion exchange water softeners
• Virtually maintenance free - no salt bags or other chemicals to
constantly add or maintain
• No control valve, no electricity and no wastewater
• Improves efficiency of all water heating devices and
downstream plumbing components
• Simple installation – standard 1" connections
• Excellent system for homes where equipment protection
is desired for longer equipment life and reduced energy
consumption
• OneFlow
®
+ cartridge-based systems are easily maintained.
• Easily installed mounting bracket and multi-function tool included to
allow cartridge change-outs when necessary
Model OFPSYS
OneFlow
®
+ Salt-Free Scale
Prevention and Water Filtration
Specifications
A OneFlow®+ scale prevention system shall be installed on the cold
water service line to condition the tap water just prior to the service line
feeding the residential home. The OneFlow
®
+ system uses a 20 micron
radial flow carbon block cartridge with a dirt holding capacity up to 2.2
lbs (1 kg). This carbon block reduces chlorine taste and odors for up to
50,000 gallons (189,000 liters) of use, with a flow rate of 3 gpm (11.34
lpm). The OneFlow
®
+ system also uses a scale prevention cartridge
which is good for up to 250,000 gallons (945,000 liters) or replacement
every 3 years, whichever comes first. The installation area should be
suitable in size for the housing to be serviced without encumbrance
and the system should be installed per the Installation, Operation &
Maintenance manual as provided with each system.
The OneFlow
®
+ system must not require additional wastewater to
backwash, flush, or regenerate once put into service. The system
shall not require any chemical additives and shall not require
electricity for operation.
OFPSYS
For Residential Applications
ES-OFPSYS
LEAD FREE
*
Job Name
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Contractor
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Job Location
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Approval
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Engineer
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Contractor’s P.O. No.
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Approval
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Representative
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Watts product specifications in U.S. customary units and metric are approximate and are provided for reference only. For precise measurements,
please contact Watts Technical Service. Watts reserves the right to change or modify product design, construction, specifications, or materials with-
out prior notice and without incurring any obligation to make such changes and modifications on Watts products previously or subsequently sold.
*The wetted surface of this product contacted by consumable
water contains less than 0.25% of lead by weight.
NOTICE
Inquire with governing authorities for local installation requirements
The information contained herein is not intended to replace the full
product installation and safety information available or the experience
of a trained product installer. You are required to thoroughly read all
installation instructions and product safety information before begin-
ning the installation of this product.
NOTICE