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Honeywell HPA300 replacement filter
Documented OEM reference: 3 R HEPA filters (HRF-R3) + A pre-filter
Honeywell's official guide groups HPA300/HPA304 as Extra Large and specifies three R HEPA filters plus one A or A+ pre-filter for that size.
Limits. The replacement quantity differs by console size. Confirm the full model and number of R filters from the Honeywell documentation before purchase.
Honeywell official Find My Filter page ↗
Source market: US · Checked 2026-10-19. No stock, price, or seller claim is made. Fit is not filtration performance.
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Other models listed for the same part
- Honeywell HPA304
One part listed for several models does not make those purifiers interchangeable.