
Water filter quiz
Your water, understood. Your system, built for it.
Tell us where your water comes from and what you notice, or share a water test. We'll match what you tell us to the right stages and size one complete system that fits.
- Uses public records for your ZIP
- Reads your water test, if you have one
- One complete system, sized, one price
Start where you are
One tool, every kind of water.
Pick your starting point. It opens the right questions.
My homeCity water or a private well
I have a water testA lab test or your city's yearly report
A businessFood service, hospitality, healthcare, farms and more
An RV or boatRVs, vans, tiny homes and boats
Aquarium or grow roomAquariums, ponds and indoor grows
Replacement filtersRefills for a system you already own
See it in action
Watch a plan come together.
A real run through the Wizard for a city home: the ZIP, a few answers, then the complete system in the order it goes.
From the run in the video
1 complete system,sized
How it reads your water
Three sources, one plan.
It uses what's there, and every stage tells you where its reading came from.
Your answers
What you see, taste and smell, and how your home uses water.

Your water company's records
On city water, what your utility has reported for your ZIP.

Your water test
Add a lab report and we read the actual numbers, right in your browser.

Every stage in your plan shows
- What it treats
- Where the reading came from
- The size for your home
- Its upkeep

Since 1994
Built by people who answer the phone.
We design and hand-assemble our systems in the USA. Before you buy and for as long as you own one, you can talk to a real specialist.
Talk to a specialist: 1-800-934-0051

