FitCheckrReplacement comparison
HRF-R3 vs Core 400S-RF
A: HRF-R3
B: Core 400S-RF
1/2 difference: Pack contents
Family: Honeywell vs Levoit
Timing: 12 mo vs 12 mo
Illustrated fit map, not a product photo. Circled areas mark the fit details buyers should verify before treating these replacements as interchangeable. Different fit systems.
Quick verdict
Honeywell HRF-R3 and Levoit Core 400S-RF serve different air purifier designs and cannot be substituted.
Official reference pages
Use these manufacturer pages to inspect current product photos, packaging, and model language. FitCheckr's diagram is an illustration of fit risks, not a copied product image.
Honeywell
Honeywell HRF-R3 True HEPA Replacement Filter Pack
Honeywell HPA300 owners replacing the three R-format HEPA filters.
Levoit
Levoit Core 400S-RF Replacement Filter
Levoit Core 400S owners replacing the cylindrical Core 400S filter.
| Fit signal | HRF-R3 | Core 400S-RF |
|---|---|---|
| Brand family | Honeywell | Levoit |
| Replacement type | HEPA filter pack | HEPA filter |
| OEM status | oem | oem |
| Replacement interval | About every 12 months | Every 6-12 months depending on usage |
Risk summary
Pack count and shape matter. A flat panel HEPA pack and a cylindrical purifier filter are different fit systems.