iSpring HW12X2 10" Water Filter Housings (2-Pack) — The Fix for a Leaking RO System, $38.65 CAD (23% Off)

Amazon.ca has the iSpring HW12X2 10" water filter housings, 2-pack, at $38.65 CAD, down from $49.97 — 23% off. Prime members ship free; otherwise free shipping starts at $35.

On a reverse-osmosis system that's a few years old, the part that fails first usually isn't the filter — it's the housing. Overtightened, plastic-aged, or frozen once over a winter, the canister cracks and you get a slow drip under the cabinet. This is the replacement: standard 10" x 2.5" size, 1/4" inlet/outlet, fits most RO and RO/DI systems, including older units from Watts Premier, Flowmatic, PuROLine, Crystal Quest and Apex.

Polypropylene body, NSF certified, two in the box so you replace both at once.

One caveat before you order: these are not a replacement part for RCC7 series units sold before March 2020. Check your model and year first.

The reviews tell the same story repeatedly — the original manufacturer discontinued the housing, it cracked, and this was the one that matched the dimensions. Several also warn not to overtighten: hand-tight is enough, and forcing it with a tool is how the collar cracks. iSpring's North American support has a good reputation; one buyer had a pressure tank fail and got a new one shipped.

4.5 stars, 145 reviews. A niche part, but a genuinely necessary one. List price is usually around $50.

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