Filter Sizing Tool
Enter your contaminants and household size. Get the right treatment chain — sized, ordered, and priced for your home.
Step 1: Select Your Contaminants
Check each contaminant found in your water test. Enter the level if you have it.
How to Use This Tool
- Enter your contaminants. Check each one found in your water test and enter the level. Leave blank anything you do not have.
- Add your home details. Number of bathrooms and people helps us size the systems correctly.
- Get your treatment plan. The tool recommends specific systems in the correct installation order, with sizing and cost estimates for each.
Need Help Reading Your Water Test?
Read our How to Read a Water Test Report guide. Or use the Water Test Interpreter for a plain-English diagnosis of your results.
Frequently Asked Questions
What order should I install systems?
Acid neutralizer first (if needed), then sediment pre-filter, iron/sulfur filter, water softener, under-sink RO for drinking water, and UV disinfection last. Each system prepares the water for the next.
How much does a full treatment system cost?
Simple iron filter: $800–$1,400. Full chain (sediment + AIO + softener + UV): $3,000–$5,500. Add $300–$600 per system for professional installation.
Do I need all these systems?
No. You only need systems for contaminants in your water test. This tool only recommends what your specific water chemistry requires. Start with a test, then enter your results.