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By Alex Capitan · Updated May 2026
Water Filter Guide — Find the Right Filter for Your Home
Everything you need to know about home water filtration — from understanding NSF certifications to choosing the right filter for your specific situation.
Find by problem
⚗️
PFAS & forever chemicals
Hottest topic in 2026 · EPA limit: 4 ppt
Need NSF 53 or NSF 58 →
🔩
Lead & heavy metals
Old pipes, city water
Need NSF 53 →
💧
Chlorine & taste
Municipal water smell
Need NSF 42 →
🏡
Well water
Iron, sulfur, bacteria
Need UV + NSF 53 →
Find by filter type
Whole house filters
From $650 · All taps covered · Best for families
View picks →
Under-sink filters
From $150 · Kitchen tap only · Easy install
View picks →
Reverse osmosis
From $200 · Best contaminant removal · NSF 58
View picks →
Pitcher filters
From $50 · No install · Good for renters
View picks →
Essential guides
NSF 42 vs 53 vs 58 — What the difference means
Understanding certifications before you buy
What is PFAS and why it matters in 2026
Forever chemicals explained with EPA data
Does Brita remove PFAS? Honest answer with lab data
The truth about popular pitcher filters
How often to replace water filters — real schedule
Replacement schedules by filter type
Is tap water safe in the US? PFAS levels by state
EPA and USGS data by state
Not sure which filter you need?
Answer 3 questions — get a specific NSF-verified recommendation.
Find my filter ↗