DoultonDoulton HIP DUO Under Sink System with Biotect Ultra
Doulton HIP DUO Under Sink System with Biotect Ultra
Doulton
Promising research
AquaTru
AquaTru Under Sink Reverse Osmosis System
Strong research
£375at AquaTru
Best for: People who want the widest set of certified claims under the sink, including microplastics
Price checked
Buy now at AquaTruAlso at Amazon · See price on Amazon
Compare ›- IAPMO-listed to NSF/ANSI 42, 53, 58 and 401
- Certified for lead, PFOA/PFOS and microplastics
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IAPMO-listed to NSF/ANSI 42, 53, 58 and 401
- Material
- Plastic housing
- Certifier
- IAPMO R&T
- Filter media
- Pre-filter, carbon, RO membrane, VOC carbon
Where we checked it: aquatru.co.uk ›
Compare where to buy
We may earn a commission if you buy through our links. How we choose ›
Why we picked it
The ATU200 model is listed by IAPMO R&T under NSF/ANSI 42, 53 (PFOA, PFOS, VOCs), 58 (12 claims including lead, fluoride and TDS) and 401 (16 claims including microplastics). That is one of the broadest certified sets we found on sale in the UK.
Best for
People who want the widest set of certified claims under the sink, including microplastics
Not for
Hard water homes that will not soften the feed, or anyone who wants the lowest waste water
The details that matter.
- • IAPMO-listed to NSF/ANSI 42, 53, 58 and 401
- • Certified for lead, PFOA/PFOS and microplastics
- • About 3:1 tap water to filtered water
- • Hardness limit matters in much of England
Specifications
- Material
- Plastic housing
- Certifier
- IAPMO R&T
- Filter media
- Pre-filter, carbon, RO membrane, VOC carbon
- Pure to drain
- About 1:2 (3 litres in, 1 litre out)
- Hardness limit
- 10 gpg
- Remineralisation
- Optional alkaline version (+£20)
Certifications
How strong is the research? What our grades mean ›
- Strong research
- Independent certification or lab data for the specific claim.
- Promising research
- The material is well supported, but there is no product-level testing.
- Early research
- Little independent research.
- Mixed research
- Research findings disagree.
- £
- Under £20
- ££
- £20 to £79
- £££
- £80+
Compare with similar
| Feature |  |  |  |  |
|---|---|---|---|---|
| Price | £375 | £329 typical | £359 | £425 |
| Material | Plastic housing | Plastic housing | Plastic housing | Plastic housing, glass carafe |
| Filter media | Pre-filter, carbon, RO membrane, VOC carbon | Composite pre-filter, RO membrane, mineral post-filter | 3-stage RO Super-Filter, mineral cartridges | Pre-filter, RO membrane, carbon |
| Research | Strong research | Promising research | Early research | Strong research |
| Link | You're here | View › | View › | View › |
