The SPECTRUM Z1 is a compact 4-stage under-sink filtration system designed for healthier, better-tasting water at home or in light commercial spaces. It reduces chlorine, PFAS, heavy metals, and microplastics, helping to improve the flavour of tea, coffee, and food. The space-saving design fits nearly under most kitchen units and features a simple twist-lock cartridge system with push-fit connections for quick maintenance. Cartridge change monitors and auto-flush settings keep water quality consistently high

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Frequently asked questions

A direct flow (also called tankless) RO system produces filtered water on demand rather than storing it in a pressurised holding tank — this saves under-sink space and gives fresher water since it isn't sitting in a tank between uses, though it typically has a lower peak flow rate than a tank-based system.

Direct flow RO systems typically use a small booster pump to maintain output pressure without a storage tank, so check the specific product listing for power requirements before installation, particularly if you're planning to install it somewhere without an accessible socket.

The Z1-E020 uses Spectrum's quick-change cartridge format, so filter and membrane changes are a simple twist-and-replace rather than needing tools or disconnecting pipework — this makes routine maintenance faster and reduces the risk of a poor reseal.

Pre-filters typically need changing every 6–12 months and the membrane every 12–24 months, depending on your water quality — the system usually shows reduced output as an early sign a stage needs attention.

Yes — the direct flow, tankless design is specifically aimed at installations where under-sink space is tight, since there's no pressurised storage tank to accommodate alongside the filter housings.