Whole-house water filtration
One system where water enters your home, protecting every tap, shower, water heater and washing machine downstream. Bigger tickets, bigger differences in paperwork - here is the honest map.
All eight systems we track
Aquasana HealthShield
Whole-house tank system with PFAS media by Aquasana.
Aquasana Rhino (WH-1000)
Whole-house carbon + KDF tank system by Aquasana.
SpringWell CF1
Whole-house carbon tank system (1-3 bathrooms) by SpringWell.
Kind Water E-1000
Whole-house cartridge system by Kind Water Systems.
Pentair Pelican PC600
Whole-house carbon tank (1-3 bathrooms) by Pentair Pelican.
iSpring WGB32B
Whole-house 3-stage cartridge system by iSpring.
Express Water 3-Stage Whole House (WH300SCKS)
Whole-house 3-stage cartridge system with gauges by Express Water.
Aquasure Harmony 48,000-Grain Softener
Whole-house salt-based water softener by Aquasure.
Filter, softener, or both?
They do different jobs. Filters reduce chlorine, sediment and - in the one certified case here - PFAS. Softeners remove the calcium and magnesium that cause scale and spotting (about 85% of US homes have hard water, per USGS hardness data as widely reported). Salt-free conditioners change how minerals behave so scale sticks less - they do not remove hardness, whatever the brochure implies. Many homes end up with a carbon system and a softener. Decide with our guides: countertop vs whole-house and the hard-water guide.
Well water? Start here
The EPA does not regulate private wells - more than 43 million Americans drink from one, and testing is the owner's job. Sediment, hardness, iron and bacteria each need a different stage, in the right order. Read the well-water playbook →