Pure Water. 0.0001 micron Filtration Precision

Indiana Reverse Osmosis Systems for Cleaner, Better Tasting Drinking Water

Experience the difference of truly clean water. 

Your tap water may carry PFAS, lead, chlorine, arsenic, fluoride, and more. Things you cannot see, smell, or taste. But your body still processes them every day.

A Zenith reverse osmosis system reduces these contaminants by up to 99% at the tap. Cleaner, crisper drinking water for your whole family. Fewer bottled water runs. More confidence in every glass.

800 GPD

High Output

7 Secs

Fill 8oz cup

2:1 Drain Ratio

Water Efficient

5 Years

Warranty*

SMART MONITORING

Real-time TDS display & filter life indicators

9-STAGE FILTRATION

Removes 1000+ contaminants

MINERAL BALANCED

Restores essential minerals & alkaline pH

TANKLESS DESIGN

70% more space savings vs tank systems

Every Zenith recommendation starts with a free in-home water test, a professional digital analysis that tests 7 contaminants in under 2 minutes and shows you exactly what’s in your water, not old-school test strips. For deeper concerns, paid certified lab testing is available covering 150+ contaminants.

Zenith Smart Reverse Osmosis System

The Guardian RO800 represents a significant shift from traditional water filtration.

If you’re looking to move away from the bulky, slow-moving tank systems of the past and toward a streamlined, high-performance water filter option, these systems are ideal. By utilizing a tankless design, they provide fresh, purified water on demand, rather than letting it sit in a storage container where it can stagnate. This not only frees up valuable under-sink cabinet space, but also delivers a high-capacity flow of up to 800 gallons per day – perfect for busy families who crave purified water.

Beyond its physical footprint, the system prioritizes efficiency and user-friendliness, operating with a smart 2:1 drain ratio, ensuring significantly less wastewater. With smart, real-time displays and filter life tracking, homeowners can easily stay ahead of maintenance. Backed by professional installation from Zenith Pure Solutions, the Guardian RO800 is designed for a truly seamless ownership experience.

Technical Specs & Key Features

  • System Type: Tankless reverse osmosis
  • Installation Location: Under-sink (kitchen)
  • Approximate Dimensions: 5.3 × 14.7 × 15.5 inches
  • Rated Capacity: Up to 800 GPD
  • Tested Flow Rate: Up to 0.56 GPM
  • Drain Ratio: Approx. 2:1 (purified water : wastewater)
  • Operating Pressure: 20–80 psi
  • Power Requirement: Electric pump system (standard outlet)
  • Application: Residential drinking & cooking water

Guardian RO uses an ultra-fine RO membrane to purify your water in multiple stages, leaving you with water that tastes better, is more clear, and better protects your clothes appliances.

*Guardian RO is designed to significantly reduce:

  • Sediment and fine particles
  • Chlorine and chloramine
  • Fluoride
  • Lead and other heavy metals
  • Arsenic
  • Dissolved solids (TDS)
  • Limescale and mineral-related buildup
  • VOCs (volatile organic compounds)
  • Taste- and odor-causing substances

*Actual contaminant reduction depends on incoming water quality, operating conditions, and proper maintenance.

  • Real-Time System Monitoring: Enjoy an integrated display that shows you how the system is operating and what your current water quality is like, as well as trends over time.
  • Filter Life Tracking: The system has built-in filter life indicators to help track remaining filter life and what type of maintenance you should be investing in – no guesswork and consistent performance.
  • Quick-Change Filter Design: Filters are designed for easy replacement compared to traditional systems, making servicing faster and more reliable.

Each system comes with a dedicated RO drinking water faucet included, as well as an optional three-way kitchen tap that offers hot water, cold water, and purified water all from one faucet.

Faucet drilling service is available if no existing opening is present.*

*Customer consent required prior to drilling.

Routine maintenance is essential for optimal performance and water quality. We recommend:

  • Year 1 Maintenance: Standard filter replacement and system inspection
  • Year 2 Maintenance: Full service including filter replacement and RO membrane change

✔ Filters and membranes are included when professional maintenance is purchased.
✔ No DIY filter changes are required.

When installed by Zenith Pure Solutions, Guardian RO includes a 2-Year Parts & Labor Warranty.

This warrant covers system components against defects in materials and workmanship and applies under normal residential use.

Important Warranty Note: To maintain warranty coverage and system performance, filters and membranes must be replaced at the recommended service intervals specified for the system.

Consumable items such as filters and membranes are not covered outside of scheduled maintenance.

Three Systems. One for Every Indianapolis Home.

All installed by our local licensed team. All include a free water test. We’ll honestly tell you which one is actually right for you.

Essentials

Best for: smaller city-water homes wanting the essentials done right

PureStart Essentials
From $X.XX/day

Soft, filtered water at every tap and pure water at your kitchen sink, a clean, reliable foundation without the complexity

Performance

Best for: busy, higher-usage homes that want smart, future-ready water

Advanced Performance
From $X.XX/day

High-efficiency softening, smart tankless drinking water, and sediment protection are built for homes that use more.

Elite

Best for: large, high-demand households that want the very best

Elite Pure Water
From $X.XX/day

Our most complete system continuous soft water with zero downtime, plus smart monitoring, so you never think about it.

Our Simple Water Treatment Process

Step 1

Book Your Diagnostic

Schedule your free, no obligation water test online or by phone.

Step 2

We Test Your Water

A certified technician tests your water and evaluates your needs.

Step 3

Get Your Water Report

You’ll receive a detailed report and our recommendation with pricing.