Exact model stated by the manufacturer
WINIX WACU300 replacement filter
Documented OEM reference: WINIX Filter B
European model code; not established as identical to US U300.
Limits. Does not establish fit for similarly named or regional variants not listed, or for third-party filters.
WINIX Europe official filter page · UK (GBP pricing) ↗
Source market: UK · Checked 2026-10-20. No stock, price, or seller claim is made. Fit is not filtration performance.
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Filter Ledger. “UK WINIX WACU300 Filter in the UK”. https://filters.toolatlas.app/en-gb/filters/winix-wacu300/. Last updated 23 October 2026.