About Us

Definitive Water Technologies (DWT) is a Cape Town-based importer, distributor and local manufacturer of water treatment products, serving engineering companies, water treatment specialists, OEMs, installers and resellers from branches in Cape Town and Johannesburg (Midrand).

The trade catalogue covers the components a treatment system is actually 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.

Local manufacturing is specific and real: DWT manufactures melt-blown sediment filter cartridges at its Cape Town plant, in a range of lengths, diameters and micron ratings — including custom specifications produced to customer requirement. Locally made cartridges are supplied under DWT’s own brands, including the SUPERPURE range. The balance of the catalogue is imported and carried through the same quality checks, spares availability and technical support — service that starts from the specification, not the invoice.

The catalogue policy is deliberate: every line shows its specifications, materials, lead-time band and stock status; variants state their differences in plain words; indent and sourceable items are listed like stocked ones. Certifications are stated only where documented. Commercial terms come from the branch as a confirmed quotation — the site carries no prices.

Consumer and household products live with our retail partners at thewaterfilterfactory.co.za, on Takealot, Amazon SA and Makro; this site serves the trade.