BWT In-Line Drinking Water Filter Kit DWFKIT review
Renters and small kitchens wanting an affordable, low-fuss dedicated tap for better-tasting drinking water.
By Tom Calder · Price last checked 20 Sep 2026, 12:29 BST · price-tracked
A straightforward, budget inline carbon filter that tackles chlorine taste, odour and sediment without the plumbing complexity or waste water of reverse osmosis. Treat it as a taste-and-convenience upgrade, not a water-safety measure — it isn't sold as removing lead or nitrate.
as of 20 Sep 2026, 12:29 BST · Details
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- Genuinely DIY-friendly install — around an hour by our estimate — using a self-piercing saddle valve and push-fit hoses
- Low running cost — a single DWFCART cartridge covers up to 2,000 litres or 6 months
- Compact inline housing fits tight under-sink cupboards; includes its own quarter-turn chrome tap
- Carbon-only cartridge — no stated removal of lead, nitrate or fluoride, so it doesn't address pre-1970s lead-pipe risk
- The kit ships without a check valve and BWT's manual makes no backflow-prevention statement — fitters should add one to meet the Water Supply (Water Fittings) Regulations 1999 before connecting to the mains
Who shouldn't buy this
Skip this if you're in a pre-1970s home with suspected lead pipework or want certified removal of heavy metals or nitrate — you need a certified lead-reduction filter or reverse osmosis system, not a carbon-only inline kit.
Key specs
| Filter technology | Carbon-based cartridge (DWFCART) |
| Filter life | Up to 2,000 litres or 6 months |
| Flow rate | 2 litres/min rated flow |
| Installation | DIY inline fit under-sink; no plumber required |
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Alternatives to consider
as of 20 Sep 2026, 12:29 BST · Details
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.co.uk at the time of purchase will apply to the purchase of this product.as of 20 Sep 2026, 12:29 BST · Details
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.co.uk at the time of purchase will apply to the purchase of this product.Want this cheaper?
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