Stage 4 membrane (All models)

RO replacement cartridges
7cm dia x 32cm h each cartridge

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SKU: EY30204 Categories: ,


Stage 4. membrane. 0.0001 microns. ‘Nanofiltration’ process that removes most water impurities down to one thousandth of a micron! Needs previous filters so it doesn’t become damaged and blocked prematurely. RO membranes, like all filter media have a finite capacity, so will need changing between 6-12 months, depending on factors like your regional water feed, your daily water consumption and any pre RO treatments like a water softener.

Deliveries and Couriers: Providing your order is in stock, we normally send orders out within 48 hours of receiving it via UK Mail.

  • Free delivery on orders over £100, otherwise £10 P&P surcharge
  • £10 surcharge to Scottish Highlands, N Ireland and ROI.
  • Abroad? If you are interested in purchasing our products, please email for an accurate shipping quote.