Johkasou Wastewater Treatment
Over 1,000,000 units supplied
across 50 years

Protecting the global environment for future generations through Japanese water treatment technology (Johkasou).
NIKKO is a Johkasou manufacturer with a proud history, having provided over 1,000,000 Johkasou units across 50 years within Japan.

JOHKASOU

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NIKKO's Johkasou are widely compatible,
from household use to apartment building and industrial uses.

What is a Johkasou ?