A2O Pure reverse osmosis unit · Aquaporin Inside®
A2O Pure under-sink reverse osmosis: tankless direct flow, Aquaporin Inside® membrane, 2.1 L/min. DIMM guarantees follow-up and supply of membranes and parts.
A2O Pure: pure water, and nothing else
A sleek under-sink reverse osmosis unit, tankless, powered by the biomimetic Aquaporin Inside® membrane. Purified water on demand, straight from the tap.
- Tankless
- Aquaporin Inside®
- Leak detection
- Automatic flushing

DIMM guarantees follow-up and supply
Aquaporin Inside® membranes, pre-filters, post-filters and replacement parts: DIMM provides technical follow-up for the A2O Pure and supplies all its consumables from its warehouses in Poperinge (BE) and Steenvoorde (FR). Your installations stay supported for the long term.
Scandinavian minimalism under the sink
Matt white front, clean lines, compact format: the A2O Pure slips under the sink and goes unnoticed. It connects to a separate faucet or a 3-way faucet for purified water at the same point as mains water.
Its direct-flow design eliminates the storage tank: water is produced on demand, with no stagnation and therefore no risk of bacterial growth in a tank. A strong argument for customers who care about hygiene as much as the look of their kitchen.


Designed for safety and peace of mind
Direct flow, tankless
Purified water on demand, no stagnation, valuable space saved under the sink.
Multi-contaminant removal
High reduction of PFAS, pesticides, heavy metals, nitrates, hormones and micro-organisms.
Leak detection
A built-in leak detector protects the sink cabinet and the installation.
Automatic flushing
The membrane is flushed automatically to maintain its performance over time.
Quality measurement
The unit measures the quality of the water produced and indicates when filters need replacing.
Compact & quiet
315 × 203 × 427 mm, 53 dB: discreet integration in any sink cabinet.
Filtration inspired by nature
Aquaporins are proteins found in the membrane of every living cell. Their role: let water through, and only water. Their discovery earned Peter Agre the 2003 Nobel Prize in Chemistry.
The Aquaporin Inside® membrane embeds these proteins in a thin rejection layer on a custom support. The result: fast, selective and energy-efficient reverse osmosis that reproduces nature's own filtration process.
As nature intended: pure water, and nothing else.


3 stages, simplified maintenance
A booster pump feeds an 800 GPD reverse osmosis membrane, framed by a pre-filter and a post-filter. The numbered cartridges are accessible from the front.
- 1
Pre-filter
PP cotton + activated carbon: retains sediment, chlorine, tastes and odours, and protects the membrane.
12 months or 4,500 L - 2
DWRO® Aquaporin Inside® membrane
The heart of the system: removes dissolved salts and micropollutants by reverse osmosis.
24 months or 7,000 L - 3
Post-filter
Activated carbon: refines the taste of the purified water before the tap.
12 months or 4,500 L
A2O Pure specifications
Performance & feed water
- Filtered water flow ¹
- 2.1 L/min
- Membrane capacity
- 126 L/h (800 GPD)
- Recovery rate ²
- 65% (2:1)
- Salt rejection ²
- > 90%
- Feed water
- Municipal tap water
- Inlet temperature
- 5 to 25 °C
- Inlet pressure
- 1 to 6 bar
Installation & equipment
- Dimensions (W × D × H)
- 315 × 203 × 427 mm
- Weight
- 8.57 kg
- Connections (feed / pure / drain)
- 3/8, 1/4, 1/4 inch
- Power supply
- 220 to 240 V AC, EU plug
- Power consumption
- 95 W
- Noise level
- 53 ± 1 dB
- Leak detection · auto flush
- Yes
¹ Flow tested at 25 °C; colder water reduces flow. ² Values depend on feed water pressure, temperature, TDS and hardness: filter life, flow, recovery rate and salt rejection vary with local water. The system complies with European health, safety and environmental legislation.
Quick to fit for installers
The A2O Pure installs under the sink on a cold mains water supply and a 230 V socket. For optimal performance, DIMM recommends a prior water analysis and, on very hard water, a softener upstream.
- Connection to a separate faucet or a 3-way faucet
- Compact format, cartridges accessible from the front
- Quick filter replacement without removing the unit
- Consumables and parts available from DIMM

A reverse osmosis unit supported for the long term
Membranes, filters, spare parts: DIMM guarantees follow-up and supply of membranes and replacement parts for the A2O Pure. Contact our team for consumable orders or technical advice.
Have a Question About This Product?
Our technical team is at your service to advise you and offer the solution adapted to your B2B project.
Request a Quote View Our Catalogues