Geekpure 5-Stage RO Replacement Filter Set with 50 GPD Membrane — NSF Certified! $56.98 CAD (25% Off)

If you run a residential reverse osmosis system, filter replacement is a recurring task. This Geekpure 5-stage filter set covers an entire year's worth of filtration in one box, fitting any standard 10-inch undersink 5 or 6-stage RO system.

The set includes a PP sediment filter (5 micron), granular activated carbon filter, carbon block filter, 50 GPD RO membrane (0.0001 micron), and a post inline coconut carbon filter — plus two 1/4" NPT quick-connect fittings and a roll of Teflon seal tape. Everything you need in one purchase, no extra trips to the hardware store.

The RO membrane is NSF certified and reduces arsenic, lead, mercury, fluoride, and dissolved minerals. Geekpure has been manufacturing water treatment products for over 20 years, and this filter set holds the #12 spot in Replacement Water Filters with 4.5 stars across nearly 1,000 reviews. Each filter is individually vacuum-sealed with a 3-year shelf life. Recommended replacement: pre-filters every 6-12 months, RO membrane every 15-24 months, and post carbon filter every 12 months — actual lifespan varies with usage and feed water quality. Flush the new membrane for 30 minutes before first use.

Feed water requirements: 40-100 psi pressure, 5-45°C temperature, pH 3.0-11.0, max TDS 1000 ppm. At $56.98 CAD for a complete annual replacement kit, this is a solid value compared to buying individual filters.

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