Systems we install & service

Nineteen systems. One honest match.

The Three Rivers lineup, side by side. Compare them, open any system for its full specifications and spec sheet, then let a free water test tell us which one your home actually needs.

Last updated October 20, 2026

The short answer

For most questions, two systems lead the lineup: The Champion, a water softener with integrated carbon filtration for the whole home, and The MVP, a reverse osmosis system for purified drinking water at the kitchen sink. Many homes pair them. Softeners remove hardness; scale inhibitors only condition it.

The Three Rivers lineup at a glance. Every recommendation follows a free in-home water test.
System	Type	Installed at	What it is for	Water source	Related problems
The MVP	Drinking water	Kitchen sink	Purified drinking water · Reverse osmosis · Pre- and post-carbon	City or well	Lead, Chlorine taste & odor
The Guardian-Gold	Drinking water	Kitchen sink	Purified drinking water · Reverse osmosis · Built-in TDS monitor	City or well	Lead, Chlorine taste & odor
The Guardian	Drinking water	Kitchen sink	Drinking water · Three-stage reverse osmosis	City or well	Chlorine taste & odor
The Streamline	Water filter	Varies by cartridge	Customizable cartridges · Sediment, carbon, salt-free city combo	City or well	Chlorine taste & odor, Hard water
The Champion	Water softener	Whole home	Hardness (softening) · Chlorine taste & smell (carbon)	City or well	Hard water, Chlorine taste & odor
The Spartan	Water softener	Whole home	Hardness (softening) · Learns usage, adjusts cycles	City or well	Hard water
The Sentinel	Water softener	Whole home	Hardness (softening)	City or well	Hard water
The Infinity	Water softener	Whole home	Hardness (softening) · Twin tanks, soft water during regeneration	City or well	Hard water
The Spartan Tannin	Water softener	Whole home Well water	Tannins: yellow/brown tint, musty odor, staining	Well	Tannins (well water)
The Oracle	Water filter	Whole home Well water	Dissolved iron or hydrogen sulfide · Ozone reduces bacteria growth in tank	Well	Iron & sulfur (well water)
The Atmos	Water filter	Whole home Well water	Dissolved iron or hydrogen sulfide · Air injection, no chemicals	Well	Iron & sulfur (well water)
The Enforcer	Water filter	Whole home	Municipal disinfectant chemicals · Granular activated carbon	City	Chlorine taste & odor
The Interceptor	Water filter	Whole home	Disinfectant taste & odor · Carbon, on-demand	City	Chlorine taste & odor
The Equalizer	Water filter	Whole home Well water	Acidic (low-pH) water · Calcite or calcite + Corosex	Well	Acidic water
The Pioneer	Water filter	Whole home	Lead · PFOA/PFOS · Cysts (Giardia, Crypto)	City or well	Lead, PFAS
The Active Shield	Scale inhibitor	Whole home	Scale (inhibits, does not soften) · Chlorine taste & odor · Bacteria-control media	City or well	Hard water, Chlorine taste & odor
The Scale Shield	Scale inhibitor	Whole home	Scale (inhibits, does not soften) · Carbon filtration	City or well	Hard water, Chlorine taste & odor
The Renegade	Specialized	Custom build	Custom media for problems the standard lineup does not solve	City or well	Iron & sulfur (well water), Tannins (well water)
The Titan	Specialized	Commercial	High-volume softening, filtration and RO	Commercial	Commercial: quoted per project

01 · 4 systems

Drinking Water Filters

Reverse osmosis and cartridge filtration for the water you drink and cook with: purified water at a dedicated faucet, without the bottled-water run.

R.O. Filtering

The MVP

Purified water at the point of use

Our most complete reverse osmosis system for drinking water, cooking and beverages: multi-stage filtration, a TDS meter and a dispensing faucet.

See The MVP

R.O. Filtering

The Guardian-Gold

Reverse osmosis with a built-in monitor

Reverse osmosis with a built-in TDS monitor that detects when cartridges begin to let contaminants through: real-time quality monitoring under your sink.

See The Guardian-Gold

R.O. Filtering

The Guardian

Simple, dependable reverse osmosis

A three-stage reverse osmosis system for reducing microscopic contaminants, with storage tank and dispensing faucet included.

See The Guardian

Cartridge Filtration

The Streamline

Filtration that fits

Customizable cartridge filtration: choose the cartridge that matches your water, from sediment and carbon to a salt-free city water combination.

See The Streamline

02 · 5 systems

Water Softeners

True softening: ion-exchange systems that remove the calcium and magnesium hardness minerals behind scale, spots and stiff laundry, for every tap in the home.

Softening + Filtration

The Champion

Softening and filtration in one tank

A powerful softener with integrated carbon filtration in one tank: softer, better-tasting water throughout the entire home. Two sizes available.

See The Champion

Softening

The Spartan

The smart softener

The smart softener: predictive water usage automatically adjusts cycles to match your habits. High-efficiency design, four sizes available.

See The Spartan

Softening

The Sentinel

Tough on hardness, easy to live with

Our standard softener: reliable, consistent treated water without overcomplicating your life. Four sizes available.

See The Sentinel

24/7 Softening

The Infinity

Two tanks. Soft water around the clock.

The twin-tank softener that never waits for regeneration: one tank softens while the other recharges. Three sizes available.

See The Infinity

Tannin Removal

The Spartan Tannin

Clearer well water starts here

Built for well water: tannin resin captures the organic material behind yellow/brown tint, earthy smells and staining.

See The Spartan Tannin

03 · 7 systems

Water Filters

Whole-home filtration at the point where water enters the house: iron, sulfur, chlorine, acid, lead and PFAS, handled by the system built for each problem.

Filtering + Ozone

The Oracle

The clear answer for challenging well water

Air-injected filtration enhanced with ozone to dramatically reduce bacteria growth in the tank. Built as The Oracle Iron or The Oracle HS.

See The Oracle

Air-Injected Filtration

The Atmos

Air does the heavy lifting

A smart, chemical-free approach to well water: compressed air converts dissolved iron and hydrogen sulfide so media can capture them.

See The Atmos

Whole-Home Filtration

The Enforcer

A gatekeeper for city water

Advanced whole-home granular activated carbon filtration that stands between you and harsh municipal chemicals. Three sizes available.

See The Enforcer

Whole-Home Filtration

The Interceptor

Simple, strong, reliable filtration

The worry-free, low-maintenance answer to the bad taste and odor of municipal disinfectants, treated on demand.

See The Interceptor

Acid Neutralizing

The Equalizer

Balanced pH, protected pipes

Calcite correction for mild acidity, or a calcite plus Corosex blend for stronger correction. Two sizes available.

See The Equalizer

Lead, Cyst & PFOA/PFOS

The Pioneer

Whole-home 0.5 micron filtration

Whole-home 0.5 micron filtration designed to target lead, cysts and PFOA/PFOS, with filter-life indicator lights.

See The Pioneer

Cartridge Filtration

The Streamline

Filtration that fits

Standalone or part of a lineup: a customizable cartridge filter with a bottom drain that rinses the cartridge to prolong capacity.

See The Streamline

04 · 3 systems

Scale Inhibitors

Salt-free scale inhibition: these systems condition hardness minerals so they are far less likely to stick to plumbing and appliances as scale. They do not remove hardness the way a softener does, and we will never sell them as if they did.

Scale Reducing + Filtering

The Active Shield

All-around, salt-free scale defense

Complete on-demand, salt-free protection: scale reduction media, high-capacity carbon, and bacteria-control media that reduces bacteria growth in the tank.

See The Active Shield

Scale Reducing + Filtering

The Scale Shield

The salt-free answer to scale

The modern, eco-friendly way to prevent limescale: specialized media, on-demand treatment, virtually no maintenance.

See The Scale Shield

Scale Reducing + Filtering

The Streamline

Filtration that fits

Fit The Streamline with its salt-free city water cartridge: granular activated carbon plus scale reduction media in a single pass.

See The Streamline

05 · 2 systems

Specialized & Commercial

When the standard lineup is not enough: fully customized systems for the toughest residential water, and a commercial line scaled for high-volume properties.