Geekpure 5-Stage RO Replacement Filter Set — Universal Fit, 25% Off! $59.83 CAD

If you have an under-sink reverse osmosis system at home, you know the routine — filters need replacing every 6-12 months, and calling a technician can easily cost more than the filters themselves. This Geekpure 5-stage complete replacement set gives you everything in one box: PP sediment, granular activated carbon, carbon block, 75 GPD RO membrane, and post inline coconut carbon filter. Quick-connect fittings and Teflon tape are included, so you don't need to hunt for extras.

The standard 10-inch size fits most residential RO systems — iSpring, APEC, Watts, Premier, Flowmatic, Crystal Quest, and more. Geekpure is an ISO 9001 certified manufacturer and a member of the Water Quality Association, so these aren't generic no-name cartridges.

All five filters are individually sealed to extend shelf life up to 3 years. The RO membrane lasts 15-24 months, and the pre-filters last 6-12 months — one kit covers roughly a full year of filtration. At $59.83 (down from $79.99), you're saving a clean 25%. Rated 4.4 stars with over 1,200 reviews, most users say installation is straightforward and the fit is precise. If your filter change light has been blinking at you for a while, now's a good time.

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