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Cuiven
Opus hydration system recessed into a stone wall

Opus / Hydration System

The apex ofdrinking water.

Hyper-purified, remineralized with authentic terroir, and metered to the tenth of a milligram. From $6,500.

0.0001 μm RO membrane99.7% rejection rate0.1 mg dosing resolutionSix authentic terroirsUp to 8 dosing channelsTankless architecture10 studio-tuned presets
02The Journey

Five stages between the main line and your glass, then precision dosing.

01 / 06

Sediment

A pleated pre-filter arrests particulates down to one micron before they reach the membrane.

Sediment stage of Opus purification
02 / 06

Reverse Osmosis

The membrane is engineered to reject dissolved solids, PFAS, heavy metals, and pharmaceutical residues.

Reverse Osmosis stage of Opus purification
03 / 06

Activated Carbon

Catalytic carbon polishes taste and odor, removing chlorine byproducts and organic compounds.

Activated Carbon stage of Opus purification
04 / 06

UV Sterilization

A sealed UV-C chamber disinfects at the point of pour — the final safeguard in the stack.

UV Sterilization stage of Opus purification
05 / 06

Remineralization

Purity alone tastes empty. Terroir cartridges dissolve authentic mineral profiles back into the water.

Remineralization stage of Opus purification
06 / 06

Precision Dosing

Metered channels add vitamins, electrolytes, and botanicals to the tenth of a milligram.

Precision Dosing stage of Opus purification
03Presets

A glass for every hour.

Ten studio-tuned recipes ship with every system. All of them are yours to retune.

These statements have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure, or prevent any disease.

Pure preset
01

Pure

Chilled, still

Nothing at all

Morning Boost preset
02

Morning Boost

Cool, light sparkle

B-complex, natural caffeine

Post-Workout preset
03

Post-Workout

Cold, still

Electrolytes, magnesium

Focus preset
04

Focus

Room, still

Suntheanine, rhodiola

Wind Down preset
05

Wind Down

Warm, still

Magnesium glycinate

Sleep preset
06

Sleep

Warm, still

Glycine, chamomile extract

Immunity preset
07

Immunity

Cool, still

Liposomal C, zinc picolinate

Skin & Glow preset
08

Skin & Glow

Chilled, still

Collagen peptides, silica

Clean Energy preset
09

Clean Energy

Cold, full sparkle

Caffeine, L-theanine

Hydration+ preset
10

Hydration+

Cool, still

Full electrolyte matrix

04The Interface

Try the screen. Really.

This is a live simulation of the Opus touchscreen. Pick a recipe, edit the blend, and pour a glass.

Cuiven
TDS 42 ppm/pH 7.1
Filter94%
CO₂67%
Dosing81%

Pure

No additions · Izumi minerals

Hyper-purified water, remineralized with Izumi basalt. Nothing else.

Tap Edit Blend to build your own recipe.

Interactive demo. The production screen is a 10.1″ laminated glass panel.

05Beyond Purification

More than clean. Yours.

Sparkling or still, ice to boil, enriched or untouched. Four systems no other purifier combines.

Micro-bubble Carbonation
4 levels

Micro-bubble Carbonation

Champagne-fine sparkle, from a whisper to full effervescence.

Precision Temperature
±1°C

Precision Temperature

Instant delivery from 4 to 98 degrees at the same spout.

Hydrogen Enrichment
1.5 ppm

Hydrogen Enrichment

Dissolved H₂ generated on demand, never stored.

The Interface
10.1″

The Interface

Laminated glass touchscreen with ten studio presets.

06The Alternative

Everything else is a compromise.

Three ways to get water. One way to get all of it.

 OpusCuivenCountertop ROFilter pitcher
Water contactSteel, titanium, glassPlastic tankPlastic
Purification6-stage tankless RO3–4 stage, with tankCarbon only
Remineralization6 terroir profilesCalcite puck
Dosing0.1 mg, at the pour
Sparkling4 carbonation levels
Hydrogen1.5 ppm on demand
Temperature4–98°C ±1°Ambient / hot onlyAmbient
Interface10.1″ glass touchscreenButtons
07Terroir Collection

Water has a homeland.

Each cartridge carries stone milled from a real place, so remineralization reproduces a genuine spring, not a lab approximation.

Soft, faintly sweet, low mineral load. The water of Japanese tea culture.

Izumi Basalt™ terroir landscape
08Compare

Find your Opus.

 CoreCore+Core MAXMost PopularAtelierFlagship
Price$6,500$9,500$12,000$15,000
Form factorCountertopCountertopWall-recessedWall-recessed
Dosing channels4668
Terroir slots1233 (full collection)
Flavor moduleOptionalIncluded
Priority support
ConfigureConfigureConfigureConfigure

Begin witha single glass.