ONE™ E3 Cartridge Filtration System
A Smarter, Simpler Solution for Whole-House Water Filtration
The ONE™ E3 is a versatile, high-performance filtration platform designed for whole-house applications. With a durable, non-metallic design, tool-free maintenance, and integrated bypass plumbing, the E3 makes it easier than ever to deliver clean, safe water throughout your home or facility—while giving you the flexibility to choose from a wide range of filter cartridges to suit your specific needs.
Engineered for Flexibility
The ONE™ E3 system is compatible with a full suite of filtration cartridges, including sediment, carbon, specialty media, and advanced multi-stage designs. Whether you’re targeting particulates, chlorine, taste and odor, or chemical contaminants, this system offers the platform to support it—all with fast and simple cartridge replacement.
Its modular construction and 1″ MNPT threaded connections make installation straightforward for plumbers and professionals, while the snap-ring design allows homeowners to change filters in minutes, without tools or mess.
Smart Design Features
Built for performance and convenience, the ONE™ E3 incorporates a number of thoughtful features that make it ideal for both residential and light commercial use:
- Tool-Free Cartridge Replacement
- Patented snap-ring technology makes filter changes fast and effortless.
- Integrated Bypass Valve
- Included as standard—quickly isolate the system for service without shutting down water to the rest of the building.
- 3/8″ PEX Drain Valve with Shut-Off
- Makes flushing sediment or draining the housing quick and clean.
- Non-Metallic Housing
- Corrosion-resistant, lightweight, and compatible with a wide range of water chemistry environments.
Two System Options – Choose Your Level of Control
- 1. Standard E3
- A non-metered system with manual filter replacement and no electronics. Simple, effective, and ideal for users who prefer basic operation.
- 2. E3-M (Metered Version)
- An optional upgrade that adds a built-in water meter and real-time LED status lights:
- Green: Filter operating normally
- Yellow: 10% life remaining – change soon
- Red: Change filter now
This intuitive color-coded indicator eliminates guesswork and ensures your system is always running at peak performance. The metered version tracks water usage and notifies you when it’s time to replace the cartridge.
Why Choose the ONE™ E3 System?
- Compatible with a wide range of filter media
- Supports high-capacity, large-format cartridges
- NSF-61 listed materials for safe potable water use
- Ideal upgrade from 2.5″ or 4.5″ traditional housings
- Significantly reduces maintenance frequency
- Works for city or well water configurations
- Designed for point-of-entry (POE) use
This system is the foundation. You choose the filtration solution that fits your needs.
System Specifications
| Feature | Detail |
|---|---|
| Connection Size | 1" MNPT inlet/outlet |
| Installation | Includes bypass valve & drain port |
| Max Operating Pressure | 125 psi |
| Max Temperature | 120°F |
| Filter Change Method | Snap-ring with depressurization button |
| Mounting | Floor-standing or supported |
| Use Case | Whole-house (POE) / light commercial |
| Certifications | NSF/ANSI 61 materials |
Cartridge Compatibility
The ONE™ E3 system supports multiple cartridge series, including carbon blocks, pleated sediment, NanoAl™ antimicrobial filters, meltblown depth cartridges, and media bottles for custom filtration blends.
View All Compatible Cartridges
What's Included
- ONE™ E3 Housing with Snap-Cap Assembly
- Integrated Bypass Valve and 1″ MNPT Connectors
- Drain Valve Kit with Shut-Off
- Umbrella Cap (non-metered version)
- Easy installation & maintenance instructions
Note: Cartridges sold separately.
Upgrade Your Filtration Platform
The ONE™ E3 isn’t just a filter—it’s a platform. Built to accommodate your water quality needs today and tomorrow, this system gives you the flexibility to adapt your filtration strategy without replacing hardware.