Primary replacement filter set
Winix Filter C – 113050 replacement filter
Fits B151, P150. Winix sells this as a one-year replacement filter set: replace the True HEPA filter every 12 months and the included activated carbon filters every 3 months.
Compatible models
| Model | Filter | Part number | Role | Source | Marketplace |
|---|---|---|---|---|---|
| Winix B151 | Filter C | 113050 |
Primary replacement filter set | Winix America Filter C - 113050 | Check prices |
| Winix P150 | Filter C | 113050 |
Primary replacement filter set | Winix America Filter C - 113050 | Check prices |
Search marketplace
Filter C 113050
Start with the exact part number, then narrow by compatible model if needed.
Check eBay prices for 113050Model-specific searches
Frequently asked questions
How often should I replace the Winix Filter C (113050)?
Winix sells this as a one-year replacement filter set: replace the True HEPA filter every 12 months and the included activated carbon filters every 3 months. The Filter Replacement Indicator LED on the unit also illuminates when a filter change is due.
Which Winix models use the Filter C 113050?
According to the official Winix product page, Filter C (113050) fits Winix B151 and Winix P150. Verify the model label on your unit before ordering.
Is the Filter C (113050) washable?
No. Winix does not describe Filter C (113050) as washable; replace it on schedule. Only the fine-mesh pre-filter built into the unit is permanent and washable.
Do aftermarket 113050 filters work?
Marketplace listings include both genuine Winix and aftermarket filters. Aftermarket filters are usually cheaper, but Winix states its limited warranty is voided if non-Winix brand filters are used in the unit. Match the exact part number 113050 and check seller details before buying.
Source
Official Winix America product page identifies Filter C, SKU 113050, as compatible with models B151 and P150.