In stock · ships freeClarisink Hard Water Carbon Block Filter
£129.00
VAT included · Free UK delivery · Typically arrives in 4–21 business days
- Shipped via UK Tracked Delivery
- 60-Minute Simple DIY Setup
- 2-Year Comprehensive Warranty
- Engineered for Hard UK Tap Water
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- Free UK delivery on every order, no minimum spend
- 2-year warranty on all filtration systems
- 30-day returns if it isn't right for your kitchen
- Fits a standard UK cold feed — no plumber required
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Best under sink water filter UK families can rely on
Finding the best under sink water filter uk families can rely on is essential if you want to eliminate cloudiness, chemical odours, and heavy limescale from your daily kitchen tap water.
About this product
This is the simplest thing we sell that makes a real difference. One cartridge, no tank, no pump, no drain line, no electricity — water goes in one side and comes out the other tasting considerably better.
A dense carbon block works by adsorption: chlorine, chloramine and organic compounds bind to the enormous internal surface area of the carbon as water passes through. That is the entire mechanism, and it is why carbon is so good at taste and odour and so useless at dissolved minerals, which pass straight through.
Worth being honest about that boundary, because it is where most of the confusion in this category lives. If your complaint is that your water tastes of swimming pool, carbon fixes it for a fraction of the price of RO. If your complaint is limescale or a high TDS reading, carbon is not the answer.
Installation is genuinely a ten-minute job on standard 15mm pipework with push-fit connections.
Dispatched from our UK warehouse, with delivery in 4-21 business days depending on the item. That is slower than a next-day marketplace and we would rather say so up front than surprise you at the door.
Technical specifications
- Connection size
- Standard UK 15mm push-fit / compression
- Micron rating
- 5 micron
- Lifespan
- 6 months or 4,000 litres (whichever comes first)
Litres and centimetres are used throughout. Cartridge life is measured in litres of filtered water, so heavily used households will change theirs sooner.
Specifications
| Filtration stages | 1 (carbon block with scale inhibitor) |
|---|---|
| Filtration rating | 5 micron |
| Flow rate | approx. 3.8 litres per minute |
| Cartridge capacity | approx. 4,000 litres |
| Cartridge life | approx. 6 months |
| Housing size | Standard 10-inch |
| Power required | No |
| Waste water | None |
| Connections | Push-fit |
| Under-sink footprint | approx. 12cm W x 33cm H x 12cm D |
Figures marked with this symbol are provisional and are being confirmed against the manufacturer's datasheet. We publish them as estimates rather than leaving the row blank, and we do not claim any certification or test result we cannot evidence.
What this filter addresses
- Chlorine and chloramine
- Volatile organic compounds
- Sediment and particulates
- Some scale-forming behaviour in moderately hard water
What it will not do
- Carbon does not remove dissolved solids. If your goal is a lower TDS reading, this will not deliver it — reverse osmosis will.
- It does not remove fluoride or nitrates.
- Scale inhibition here is lighter than the Limescale Defender's dedicated polyphosphate stage. In a very hard-water area, choose the Defender.
- Six-month cartridge life is shorter than the Defender's twelve, so factor the running cost in.
Will this fit?
Check these before you order — they are the questions we are asked most often.
- Standard 10-inch cartridge housing
- Takes replacement cartridge AF-CBC1
- Push-fit connections suit standard UK 15mm under-sink pipework
Still not sure? Send us your sink and pipework details and we will confirm before you buy.
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