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Independent filter guides · 2025

UK Water Filters — Find the Right One

The right filter depends entirely on what's in your water. Not all filters remove the same things — a jug filter won't remove PFAS or nitrates. Enter your postcode to check your water, then find the right filter below.

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Filter categories
PFAS FiltersOnly RO removes PFAS — if your zone has a notice, this is the guide to read Water SoftenersFor hard water areas — London, South East, East Anglia Jug FiltersCheapest option — removes chlorine and taste, not PFAS Reverse OsmosisMost comprehensive — removes 99%+ of all contaminants Shower FiltersRemoves chlorine from shower water — skin and hair benefits Under Sink FiltersHigh-capacity, on-demand filtered water at the tap

Which filter do I actually need?

The answer depends on what's in your water, which varies significantly by postcode. Enter your postcode above to see your zone's parameters, then use this guide:

If your water company has a PFAS notice: You need a reverse osmosis (RO) filter certified to NSF/ANSI 58. Nothing else removes PFAS reliably. See our PFAS filter guide.

If you live in a hard water area (London, South East, East Anglia): A water softener addresses limescale. A jug filter improves taste. Both together are ideal. See our water softener guide.

If you just want to improve taste and remove chlorine: A jug filter (Brita, Waterdrop, ZeroWater) is sufficient and cost-effective. See our jug filter comparison.

If you want comprehensive protection for everything: A reverse osmosis system removes PFAS, lead, nitrates, fluoride, arsenic, bacteria, and microplastics — it is the most complete solution. See our RO system guide.