About Definitive Water Technologies
Definitive Water Technologies (DWT) imports, distributes and manufactures water treatment components. We supply engineering companies, water treatment specialists, OEMs, installers and resellers from branches in Cape Town and Johannesburg (Midrand).
How DWT started
Definitive Water was founded in 2009 to make premium bottled water and mineral and electrolyte supplements. Chandré Naudé joined the business in 2012 and used his civil engineering background to move it into water treatment: supplying components, and designing and supplying treatment systems for homes and light industry.
As the business grew, DWT began importing its own component ranges in 2017, and from 2020 it launched a number of its own brands.
What we supply
The trade catalogue covers the components a treatment system is built from: cartridge filter housings and cartridges, RO membrane elements and pressure vessels, FRP media vessels, UV disinfection systems, dosing pumps, control valves and fittings, and loose filtration media. DWT is a DuPont digital partner for FilmTec membrane elements, and stocks and sources further OEM lines under their manufacturer order codes, cross-referenced to equivalents where they exist.
Our own industrial ranges carry the DWT and FlowShell names. They are high-quality products, competitively priced.
Every line in the catalogue shows its specifications, materials, lead-time band and stock status. Variants state their differences in plain words, and indent and sourceable items are listed alongside stocked ones. Certifications appear only where they are documented. The site carries no prices; the branch sends a confirmed quotation.
Consumer and household products are sold through our retail partners at thewaterfilterfactory.co.za and on Takealot, Amazon SA and Makro. This site is for the trade.
Made in Cape Town
We make melt-blown sediment filter cartridges in our Cape Town factory, and the whole cartridge is now made from South African materials. Lengths run from 5″ to 40″ and diameters up to 4.5″, in a range of micron ratings, and we produce custom specifications to order. The cartridges are sold under our own brands, including SUPERPURE.
The rest of the catalogue is imported and goes through the same quality checks, with spares and technical support behind it.
After the sale
We want water treatment to be simple for the people who buy from us. That means helping you choose the right equipment and staying available once it is installed. Too many suppliers sell a unit and leave the customer to work out the problems alone, even real ones. If something you bought from us is not working, phone the branch and we will help you sort it out.
The team
Chandré Naudé, Managing director
Sets the company's strategy and is the main contact with our suppliers and factories. He works closely with our manufacturing partners on product design and quality.
Ryno Oosthuizen, Sales and operations manager
Runs day-to-day operations and manages the sales teams in Cape Town and Johannesburg.
Lana Steenkamp, Accounts
Jade Johnson, E-commerce and marketing
Simoney Oosthuizen, Online marketplaces
Gareth Naudé, External sales, Cape Town
Johann Strydom, External sales, Johannesburg
Lucille Mercuur, Internal sales, Cape Town
Technical review
Every article in the knowledge base and every guide on this site is written by the DWT team and technically reviewed before it is published by Chandré Naudé, BEng (Civil), a civil engineer with 15 years in the water treatment industry. Articles show their publication date and the date of the last substantive change. Corrections are welcome: write to the branch and they reach him.
Cape Town
5 Firgrove Way, Firgrove Industrial Estate, Macassar, 7134
+27 21 851 0133
Mon–Thu 08:30–16:30, Fri 08:30–16:00
Johannesburg
Unit 067, Inospace Allandale Exchange, 917 Morkels Close, Halfway House, Midrand, 1685
+27 75 084 5743
Mon–Thu 08:30–16:30, Fri 08:30–16:00