Powered by partnerships.
Built on expertise.
For over 20 years, Marsi Water has specialised in the supply of premium water treatment components and membrane chemicals to OEMs and system designers. We work closely with the world’s leading brands to offer a curated portfolio of high-performance and globally recognised products — from antiscalants and biocides to high-pressure pumps and ceramic membranes.
We keep local stock of essential membrane chemicals for quick turnaround and continuity of supply, helping new and existing clients reduce downtime, simplify procurement, and operate with confidence. Whether you’re designing a small municipal RO system or a large-scale industrial plant, our team is here to support you with technical guidance, sourcing, and after-sales service.
membrane chemicals
design and compatibility
and reliable product supply
specialised water treatment
Advanced water treatment products
from global leaders
Our range of specialised water treatment products supports efficient system design, operation, and maintenance across industrial, municipal, and commercial applications. All products are sourced from globally recognised manufacturers and are selected for their performance, durability, and simplicity of operation.
For over 20 years, we’ve delivered specialised, high-performance water treatment solutions to South Africa, fully supported by the exceptional service and support we believe in.
