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Cuiven
Cuiven Opus hydration system on a marble island in a quiet kitchen

Cuiven / Precision Water Systems

Water,perfected.

Purification instruments machined from steel and titanium — for the water you drink, and the water you live in.

Our Conviction

Water is the first thing you touch each morning and the last thing you taste at night. It deserves the same obsession as everything else in the house so we machine it like an instrument, measure it like a science, and finish it like an heirloom.

Zero plastic in the water path316L stainless & titanium4× filtration media99.6% contaminant reductionLifetime housing warrantyMachined in North Carolina
01The Standard

316L

Marine-grade water path

Steel, titanium, and glass — no plastic tubing or tanks

4×

Filtration media vs. compact filters

Oversized chambers, by design

5

Purification stages

From the main line to your glass

02Drinking Water
Opus system recessed into the wall of a luxury kitchen

Opus

Hydration System

Hyper-purified water, remineralized with authentic terroir and dosed with pharmaceutical precision. Countertop to wall-integrated, from $6,500.

Purification

Six stages

Dosing

0.1 mg

Terroir

6 profiles

Presets

10 recipes

03Shower Filtration

The last showerfilter you'll buy.

You already know what chlorine does to skin and hair, and what most filters do about it: a thimble of media in a plastic tube, exhausted in a month. Monolith XL is the correction — six stages in an oversized 316L chamber, machined like the fixture it is. From $549.

  • +Six named stages: 316L mesh, KDF-55, catalytic carbon, FIR ceramic, Vitamin-C
  • +4× the media — 12 months between cartridge changes
  • +316L stainless throughout. No plastic in the water path, ever
  • +2.5 gpm through all six stages. Full pressure, no drizzle
Chamber
6.0 in
Media
Media life
12 mo
Monolith XL shower filter head machined in brushed 316L stainless
04Materials

Six finishes.
One material standard.

Every finish is physical-vapor-deposited over marine-grade steel. Touch a panel to look closer.

Monolith finish detail, Stainless

Stainless

PVD · Brushed 316L

Monolith finish detail, Titanium

Titanium

PVD · Graphite Ti

Monolith finish detail, Champagne

Champagne

PVD · Warm Champagne

Monolith finish detail, Graphite

Graphite

PVD · Matte Graphite

Monolith finish detail, Rose Gold

Rose Gold

PVD · Rose

Monolith finish detail, Pure White

Pure White

Powder · Porcelain

05Why Cuiven

We got tired ofthe compromises.

01

No plastic contact

No plastic tubing or tanks inside a Cuiven system. Lines and vessels are 316L stainless steel, titanium, and borosilicate glass.

02

Oversized by design

Compact filters exhaust in weeks because their chambers are small. Ours carry four times the media and go months longer between changes.

03

Components that outlast the house

Marine-grade metals, modular internals, and housing warranties that run fifteen years to lifetime.

04

Made in America

Designed, machined, and assembled in Wilmington, North Carolina. Every unit is pressure-tested before it ships.

Taste what waterwas meant to be.