About Clarisink

Clarisink is a specialist retailer of under-sink water filtration systems for UK homes. We focus exclusively on point-of-use drinking water filters — reverse osmosis, carbon block, and limescale solutions — so you get honest, knowledgeable advice rather than a generic catalogue.

Much of the United Kingdom has hard water. If you live in London, the South East or East Anglia, you will know the chalky residue it leaves on kettles, taps and glassware, and the flat taste it gives drinking water. Our filters are chosen specifically for UK water conditions, tackling limescale at the source while improving taste and removing chlorine.

Every system we sell is designed for straightforward DIY installation under a standard kitchen sink. We include all fittings and clear instructions, so most customers fit their filter in under an hour without a plumber. And because filter cartridges need replacing periodically, we stock genuine replacements matched to each system.