🎉 史新低！iSpring FP500 5-Micron Sediment Filter — Protects the RO Membrane Behind It! $36.57 CAD (59% Off)

Amazon.ca currently has the iSpring FP500 first-stage 5-micron sediment filter at $36.57 CAD (list $89.66, 59% off). Prime members ship free; otherwise free shipping on orders over $35.

This is stage one on the RO5004F series tankless reverse osmosis systems, and its job is catching sand, silt, rust and anything above 5 microns. What it does for the rest of the system matters more than what it does for the water — grit stopped here is what lets the RO membrane and the carbon stages reach their rated life, and a membrane costs several times what a sediment cartridge does.

Polypropylene construction, chemical resistant, rated for up to six months depending on your water and how much you draw. Swapping it is a twist off, twist on job: no tools, no tubing to disconnect.

Two caveats. It only fits the RO5004F series, so match your model number first. And the listing is new — 11 ratings at 4.7 stars, so treat the score as thin. Filters are simple enough that the spec sheet tells you most of what matters.

At 59% off, $89.66 down to $36.57, it's worth keeping a spare if you already run an iSpring. Filters don't expire, they just come due.

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