
Materials
Metal, glass,and nothing else.
What your water touches matters as much as what we take out of it.
Purity is amaterials problem.
Most purifiers pass their clean water through plastic tubing on the way to your glass, undoing the work of the filter. Inside a Cuiven system, every wetted surface is 316L stainless steel, grade-2 titanium, or borosilicate glass.
These are the materials of laboratories and marine engineering. They cost more and machine slower, and they stay a thing.


Finishes that live well.
Housings are machined from solid billet, then finished by hand: brushed stainless, aged brass that patinas with your kitchen, oil-rubbed bronze, or PVD-coated titanium.
Fingerprint-resistant texture come standard on every finish.
Filtration housings
316L stainless pressure vessels, electropolished inside so nothing clings.
Water pathways
Steel and borosilicate glass lines end to end. No plastic tubing, no plastic tanks.
Dosing channels
Titanium micro-lines with ceramic check valves, inert to every ingredient we meter.
Terroir chambers
Glass-lined mineral beds that release stone chemistry without absorbing it.
UV-C disinfection
A quartz-sleeved chamber rated for a decade of continuous duty.
Polishing stage
A fine ceramic filter polishes the stream ahead of the UV-C chamber.
Durable issustainable.
A machine that lasts decades and eliminates bottled water outperforms any recycling program. Modular internals mean a worn part is a part, never a landfilled system.
