Water Filter comparison
An honest, data-driven comparison of two popular UK water filters: what they remove, what they cost to run, and which one belongs in your kitchen.
Key difference: ZeroWater goes further than almost any jug or tap filter on the market — its 5-stage system strips water to near-zero dissolved solids. Waterdrop takes a more balanced approach, targeting chlorine and lead without stripping minerals that contribute to taste.
If maximum contaminant removal is your priority — particularly PFAS, fluoride, nitrate, or arsenic — ZeroWater is the more capable filter and the only jug certified to NSF/ANSI 401. Waterdrop is the better option if you want filtered water at the tap without fussing over a jug, and do not need that level of contaminant removal. ZeroWater's higher running cost is the key downside, especially in hard water areas.
Maximum contaminant removal including PFAS and fluoride
Convenient tap-mounted filtration for chlorine and basic contaminants
| ZeroWater 12-Cup Ready-Pour | Waterdrop WD-FC-06 Tap Filter | |
|---|---|---|
| Price | £40 | £30 |
| Annual filter cost | ~£120/yr | ~£48/yr |
| Rating | 4.3/5 | 4.3/5 |
| Type | jug | countertop |
| Filter life | 2–4 weeks depending on TDS | 3 months |
| Flow rate | – | 2.0 L/min |
| Certifications | NSF/ANSI 53, NSF/ANSI 401 | NSF/ANSI 42 |
| What it removes | Lead, Chromium, Mercury, PFAS (total), Fluoride, Nitrate, Arsenic, Cadmium | Chlorine, Lead, Fluoride |
Maximum contaminant removal including PFAS and fluoride
ZeroWater 12-Cup Ready-Pour
Jug Filter · NSF/ANSI 53, NSF/ANSI 401
Typical price
£40approx.
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Convenient tap-mounted filtration for chlorine and basic contaminants
Waterdrop WD-FC-06 Tap Filter
Countertop · NSF/ANSI 42
Typical price
£30approx.
Affiliate link: we may earn a commission at no extra cost to you.
Yes. ZeroWater's 5-stage ion exchange filtration removes fluoride along with most other dissolved minerals. This makes it one of the only jug filters that can genuinely claim fluoride removal. If fluoride is a specific concern, ZeroWater is the right choice at this price point — the alternative is an under-sink reverse osmosis system.
It depends on what you find pleasant. ZeroWater removes virtually all dissolved solids, producing very flat, pure-tasting water — some people love it, others find it almost too neutral. Waterdrop removes chlorine but leaves minerals in, giving a crisper taste that is closer to good bottled water. Taste is subjective, but most people find the Waterdrop result more palatable as an everyday drink.
ZeroWater recommends replacing filters when the TDS meter reads 006 ppm. In soft water areas (below 100 mg/L hardness), a filter can last 4–6 weeks. In hard water areas like London or the South East (above 200 mg/L), you might need to replace every 2 weeks. Budget accordingly — at £120+ per year, ZeroWater is one of the pricier jug options to run.
Enter your postcode to get a detailed water quality report for your area, so you know exactly which contaminants you need to target.
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Product specifications and pricing are based on manufacturer data and independent testing. Annual cost estimates reflect average UK household usage. See our methodology for how we evaluate filters.