iSpring F3WCB32 Whole-House Water Filter Set (20" x 2.5") — DIY Replacement! $76.02 CAD (15% Off)

Amazon.ca has the iSpring F3WCB32 whole-house water filter set (20" x 2.5") for $76.02 CAD, down from $88.99 (15% off). Prime members get free shipping; non-Prime orders over $35 CAD ship free.

If you run a whole-house filtration system, filters are a consumable you replace on schedule — three cartridges at a time. This set fits the iSpring WCB32 series and any standard 20" x 2.5" housing. Follow the manual or the official YouTube videos and you can swap them yourself instead of booking a service call.

The three cartridges split the work: the first is a high-capacity sediment filter rated to 5 microns that catches sand and rust, while the second and third are CTO carbon blocks made from coconut-shell carbon for chlorine and odour removal — iSpring rates it up to 99% chlorine reduction. Each is rated for 30,000 gallons, which is roughly six months for a family of four depending on your water. All three are third-party tested to NSF/ANSI standards.

One caveat: unlike an RO membrane, this doesn't cut TDS — it keeps the minerals in. If low TDS is the goal, look at iSpring's RO systems instead. Cartridges ship individually wrapped, so remember to unwrap before installing.

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