4.97/5 reviews
NVO489UF (Softener)
Mineral
Odor
Hard water and chemical contaminants are common across city water supplies in North America. The NVO489UF is a high-efficiency whole house water softener and carbon filtration system engineered to reduce chlorine, calcium, magnesium, and tannins—delivering soft, clean water to every tap in your home.
Whole house system:
Installed generally in your basement or garage next to your main water valve.
Extremely low power consumption:
Costly you less than $2 per year.
Prevents Scale-Related Health Issues:
Eliminates calcium and magnesium buildup protecting your family against potential waterborne illnesses.
Healthier Skin & Hair:
Eliminates harsh minerals that cause dry, irritated skin and brittle hair.
Real Savings on Bottled Water:
Save hundreds of dollars annually by eliminating bottled water purchases.
Smart Leak Protection:
Advanced leak detection with automatic shut-off.
Core Features
Upflow Regeneration Technology
Advanced counter-current regeneration saves up to 75% salt and 64% water compared to traditional downflow systems
True 1" Porting
High-flow design maintains excellent water pressure throughout the home
Precision Brining System
Calculates exact brine requirements, using up to 30% less salt than conventional softeners
Automatic System Refresh
Self-cleaning cycle every 7 days prevents bacteria growth and maintains water quality
Ion Exchange Process
Upflow Regeneration (Salt Cleaning)
Precision Brining System
Automatic System Refresh
Soft Water Recharge Feature
Ion Exchange Process
· Hard water enters the resin tank containing thousands of tiny plastic beads (cation exchange resin)
· Each bead is pre-loaded with sodium ions
· As hard water flows through, calcium and magnesium ions stick to the resin beads
· The beads release sodium ions into the water in exchange
· Result: Hard minerals are trapped, soft water flows out
Upflow Regeneration (Salt Cleaning)
· When resin becomes saturated with hardness minerals, regeneration begins
· Salt water (brine) flows upward through the resin bed from bottom to top
· This upflow method preserves the unused portion of the resin bed
· Salt ions force the calcium and magnesium off the resin beads
· Dirty water with hardness minerals is flushed to drain
Precision Brining System
· Advanced controller calculates exactly how much salt is needed based on water usage
· Uses up to 30% less salt compared to traditional timer-based systems
· Prevents over-salting and reduces environmental impact
· Ensures optimal regeneration without waste
Automatic System Refresh
· If no water is used for 7 consecutive days, system automatically performs a refresh cycle
· Prevents bacteria growth and maintains water quality during periods of non-use
· Keeps the system sanitized and ready for use
· Particularly important for vacation homes or seasonal properties
Soft Water Recharge Feature
· Monitors system capacity continuously
· When capacity drops below 3%, triggers an automatic 15-minute recharge
· Provides immediate soft water while scheduling full regeneration
· Ensures you never run out of soft water during peak usage periods
Benefits
Dramatic Cost Savings
Reduce salt purchases by 75% and water usage by 64%,
saving hundreds annually on operating costs
Superior Water Quality
Upflow technology preserves unused resin bed, delivering consistently soft water throughout the service cycle
Hassle-Free Operation
Advanced programming and automatic features eliminate guesswork and manual adjustments
Long-Term Investment Protection
7-year valve warranty + lifetime tank warranty provide exceptional value and peace of mind
Dramatic Cost Savings
Reduce salt purchases by 75% and water usage by 64%,
saving hundreds annually on operating costs
Superior Water Quality
Upflow technology preserves unused resin bed, delivering consistently soft water throughout the service cycle
Hassle-Free Operation
Advanced programming and automatic features eliminate guesswork and manual adjustments
Long-Term Investment Protection
7-year valve warranty + lifetime tank warranty provide exceptional value and peace of mind
Water Filtration Dispenser
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Heavy Metals :
Arsenic
Barium
Zinc
Lead
Copper
Mercury, Cadmium
Iron
Chemical Products :
Chemical Contaminants
Chloramines, Ammonia, Trihalomethanes (THM), PCBs
Chlorine
Benzene
Xylene
Trichloroethylene
Pesticides, Herbicides
Pharmaceutical residues
Volatile Organic Compounds (VOCs)
Mineral Salts :
Calcium, Magnesium
Mineral Salts (TDS)
Phosphates
Chlorides, Nitrates, Sulfates
Radioactive Elements :
Radioactive Contaminants
Uranium, Radium
Debris and Sediments :
Debris & Sediment
Uranium, Radium
Tannins
Microbiological Contaminants :
Microbiological Contaminants (Pathogenic bacteria, Viruses, Protozoa )
General specifications :
Location
Whole House
Whole House
Under the Sink / Whole House
Size of Machine
Tank: 9"x48" to 14"x65" + Brine Tank
Tank: 9"x48" to 14"x65"
Compact rack system
Minimum Water Pressure
20-25 PSI (typical)
20-25 PSI (typical)
20-30 PSI (typical)
Water Waste Ratio
No waste (regeneration only)
No waste (backwash only)
No waste (UV treatment)
Filter Replacement Frequency
Resin: 10-15 years
Carbon: 6-12 months
UV Lamp: 12 months, Pre-filters: 6-12 months
Power Needed
Yes (120V for valve)
Yes (120V for valve)
Yes (for UV lamp and ballast)
Drain Needed
Yes (for regeneration)
Yes (for backwash)
No
Stages
Single Stage
Single Stage
Multi-Stage (2-3 stages)
Filter Type
Ion Exchange (Cation Resin)
Granular Activated Carbon (GAC)
Sediment + Carbon + UV Disinfection
Warranty & Certification :
Pressure Tank Warranty
Lifetime
Lifetime
12 Months
Control Valve Warranty
7 years
7 years
Not applicable
Primary Certifications
NSF/ANSI 44, 372, CSA B483.1
NSF/ANSI 42, 372
Not applicable
Water Filtration Dispenser
This is some text inside of a div block.
Heavy Metals :
Arsenic
Barium
Zinc
Iron
Mercury, Cadmium
Lead
Copper
Chemical Products :
Chloramines, Ammonia, Trihalomethanes (THM), PCBs
Chlorine
Benzene
Xylene
Trichloroethylene
Pesticides, Herbicides
Pharmaceutical residues
Volatile Organic Compounds (VOCs)
Mineral Salts :
Calcium, Magnesium
Mineral Salts (TDS)
Phosphates
Chlorides, Nitrates, Sulfates
Radoactive Elements :
Uranium, Radium
Debris and Sediments :
Debris & Sediment
Tannins
Microbiological Contaminants :
Microbiological Contaminants (Pathogenic bacteria, Viruses, Protozoa )
General specifications :
Location
Under the Sink
Under the Sink
Size of Machine
Compact tankless design
Compact under-sink unit
Minimum Water Pressure
40-60 PSI (typical for RO)
40-60 PSI (typical for RO)
Water Waste Ratio
2:1 (purified:drain)
1:1000 (99.9% recovery)
Filter Replacement Frequency
Filters: 6-12 months, Membrane: 2-3 years
Pre-filters: 6-12 months, Membrane: 2-3 years
Power Needed
Yes (for pump and controls)
Yes (for pump and controls)
Drain Needed
Yes (for concentrate)
Yes (for concentrate)
Stages
Multi-Stage (3-4 stages)
Multi-Stage (3-4 stages)
Filter Type
3-in-1 Filter + RO Membrane + Post-Filter
Sediment + Carbon + RO Membrane
Warranty & Certification :
Pressure Tank Warranty
2 years
2 years
Control Valve Warranty
Not applicable
Not applicable
Primary Certifications
NSF/ANSI 58
Not applicable
Maintenance
When initially starting the water softener, add 5 to 6 bags of salt tablets. The average salt consumption is 1 to 2 bags per month. The active elements in the tank typically have a lifespan of 4 to 5 years and need to be replaced after that. Annual maintenance of the salt tank is highly recommended to remove any salt deposits accumulated throughout the year and keep the warranty valid.
Technical Specifications
Flow Rate
High-flow 1” porting
Regeneration
Upflow (salt-saving)
Filtration
Carbon media + Ion Exchange Resin
Plumbing
1" 90° NPT elbows included
Operating Temp
4–43°C (40–110°F)
Water Pressure
30–125 psi
Contaminant Reduction
Calcium, Magnesium, Chlorine, Chloramines, Tannins
Smart Features
Precision brining, soft water recharge, automatic system refresh
Resin Type
AQUAFINE® 8% Cation Exchange
Leak & Brine Control
Brine tank with safety float, air check, brine grid
Power Requirement
120V input / 12V 650mA output
Tank
Includes moisture-wicking neoprene jacket
Flow Rate
High-flow 1” porting
Regeneration
Upflow (salt-saving)
Filtration
Carbon media + Ion Exchange Resin
Plumbing
1" 90° NPT elbows included
Operating Temp
4–43°C (40–110°F)
Water Pressure
30–125 psi
Contaminant Reduction
Calcium, Magnesium, Chlorine, Chloramines, Tannins
Smart Features
Precision brining, soft water recharge, automatic system refresh
Resin Type
AQUAFINE® 8% Cation Exchange
Leak & Brine Control
Brine tank with safety float, air check, brine grid
Power Requirement
120V input / 12V 650mA output
Tank
Includes moisture-wicking neoprene jacket
Benefits & Long-Term Savings
At Flöa, we believe clean water should be a whole-home standard. Here’s why this system is a smart investment.
FAQ’s
Frequently asked questions
What does the NVO489UF water softener remove from my water?
Can I install the NVO489UF myself, or do I need professional installation?
How much salt does the NVO489UF use, and what type should I buy?
How will I know when the NVO489UF needs regeneration or maintenance?
Will the NVO489UF affect my water pressure or flow rate?
What's Included?
The System
NVO489UF Whole House Softener + Carbon Filtration Unit Modern brine tank with safety features and compact footprint
The Media
High-performance carbon filtration & ion-exchange resin AQUAFINE® resin delivers reliable and effective mineral removal
Installation
Free professional installation by Flöa-certified technicians Tailored setup based on your home and water profile
Financing
Flexible options starting from $42/week with approved credit
