“The best under-sink water filter” 

   Rated 5/5

Pros:

• Filters to 0.1 microns
• Fits all European taps providing they're flexi pipes
• Recyclable packaging
• Made in a solar-powered facility in Italy

Cons:

• May need to tweak your under-sink setup if you have old piping

If you're willing to fork out a bit more for a longer-lasting filter, the Water2 capsule, born out of collaboration with University College London, offers a year-long lifespan and installs onto the cold tap pipe under your sink.

The internal filter is sourced from coconut shells and uses a proprietary blend of activated carbon and silver ionisation to filter tap water to 0.1 microns – something Water2 says is 2,000 times more effective than the Brita Maztra Jug. In real terms, this means it removes the nasties – like 99.999% of bacteria, viruses, microplastics and more – but leaves the good stuff.

The packaging was all recyclable. Inside the box is a capsule and filter, a white adapter for converting 3/8" to 1/2" to fit all taps in Europe, two black washer circles for the input and output, a battery to power the smart capsule indicator and a how-to guide in English and Italian.

This guide offers easy-to-follow pictures but very small written instructions. More useful was the series of step-by-step setup videos that you can access once the capsule arrives. There wasn't a noticeable impact on water pressure after instillation but it made a big different on taste and mouthfeel. It won't fit every under-sink area immediately, particularly in older homes. It works best if you have flexi tap tails installed.

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