3-Stage Optimal Whole House Water Filter System
This system includes three high-performance filters housed in three 20-inch commercial-grade casings, complete with fittings for easy connection to existing plumbing.
What’s Included
1-Micron Sediment Filter – removes fine particles
20-Micron GAC Filter – targets chemicals and improves taste
Ultra-D Sub-Micron Filter – removes bacteria, viruses & heavy metals
🔍 Filter 1: 1-Micron Sediment Filter
Captures rust, dirt, sand, and silt
Removes particles down to 1 micron
Nominal rating filters ~85–90% of 1-micron particles
Improves water clarity and protects downstream filters
Helps prevent damage to appliances and pipes
🔍 Filter 2: 20-Micron Radial GAC Filter
Contains Granular Activated Carbon (GAC) for broad chemical reduction
Radial design allows high flow and greater contact time
Filters particles down to 20 microns
Improves taste and smell of water
Removes or reduces:
Chlorine & Chloramine
VOCs, pesticides, herbicides
Disinfection byproducts (THMs, HAAs)
Microplastics (≥20 microns)
Long-chain PFAS (e.g., PFOA, PFOS)
Some heavy metals (lead, copper, mercury)
🔍 Filter 3: Ultra-D Sub-Micron Filter
Filters particles smaller than 1 micron (typically 0.1 µm)
Removes >99.99% of:
Viruses (e.g., rotavirus, norovirus)
Bacteria (e.g., E. coli, Legionella)
Cysts (e.g., Giardia, Cryptosporidium)
Also reduces:
Lead, arsenic V, iron, cadmium, chromium, selenium, mercury
PCBs, BPA, VOCs, residual pharmaceuticals
Chlorine, bromine, iodine
Biofouling precursors (proteins, acids, polysaccharides)
Recommended replacement: every 12 months
[📄 Download the Ultra-D Fact Sheet]
🔧 Installation
Suits homes on rainwater, bore, creek, or town water
Must be installed by a licensed plumber
Designed for easy maintenance and filter changes
Review our installation manual
💬 Additional Notes
For fluoride removal, we recommend pairing this system with the UltraStream drinking water filter, as whole house fluoride removal requires slow contact time
Most customers add an UltraStream system at the kitchen tap to improve taste, colour, and odour
Filter life depends on usage and water quality – replace every 6–12 months
Looking for other whole house filter options?
We offer a range of systems tailored to different water sources and concerns—whether you’re dealing with high sediment, iron, bacteria, or specific chemical contaminants.

1 review for AlkaWay Whole House – Optimal