Honeywell Home FC100A1037: A Practical MERV 11 Filter Buying Guide
PRODUCT SPOTLIGHT · AIR FILTRATION
Replacement filters are a recurring purchasing need for contractors, property teams and building owners. The useful question is not just which filter is available—it is whether the replacement matches the cabinet and the system’s airflow requirements.
The Honeywell Home FC100A1037 is a media replacement filter listed in the Service First USA catalog. Here is what to check before adding it to your next parts order.

What makes this filter worth knowing?
Resideo identifies the FC100A1037/U as a 20 × 25-inch, MERV 11 replacement media filter. Its FC100 family covers several Honeywell Home air-cleaner series, making the model number a useful reference when organizing replacement stock. That does not make every FC100 size interchangeable. See Resideo’s product information.
Product details at a glance
| Part number | FC100A1037; manufacturer listing FC100A1037/U |
|---|---|
| Product type | Replacement media air filter |
| MERV rating | 11 |
| Size reference | 20 × 25-inch class; verify actual dimensions and cabinet fit |
Resideo’s media-air-cleaner guide lists FC100A1037 for the 20 × 25 F100 replacement position. Use the cabinet’s full model and replacement-filter reference to confirm the application rather than relying on the equipment brand alone. Consult the manufacturer’s replacement-filter table.
MERV is only one part of the decision
MERV describes a filter’s particle-capture performance. A higher number is not an automatic recommendation for every system: airflow resistance also matters. Trane’s filter guidance explains that increased filtration can add resistance and affect system performance. Follow the equipment and cabinet documentation, and have your chosen HVAC professional evaluate changes to the specified filter. Read Trane’s explanation of MERV and airflow.
Four checks before you reorder
- Read the existing label. Record the complete filter part number and the air-cleaner cabinet model.
- Check the physical fit. Compare the actual dimensions and depth. Similar nominal size descriptions do not establish interchangeability.
- Confirm the specified rating. Match the approved filtration requirement instead of changing MERV solely because a higher number is available.
- Plan the quantity. Keep a cabinet-by-cabinet filter list so a multi-site order does not mix different sizes or replacement references.
Build a replacement plan around the application
Filter life depends on the filter type, operating conditions and usage. Use the manufacturer’s inspection and replacement guidance for the specific system rather than assuming one calendar interval fits every building. Record the replacement date and keep the confirmed part number with the equipment information.
Source FC100A1037 from Service First USA
View the FC100A1037 product listing → Check the listing for current availability and ordering details, or browse air filters. For a parts-matching inquiry, send the existing filter number, cabinet model and clear label photos through our Parts & Equipment Locator.
About Service First USA: Service First USA is the parts and equipment sales business of Service First HVAC Solutions Co. We supply products and purchasing support. We do not perform on-site diagnostics, repairs, installation or maintenance; customers arrange field work with their chosen contractor.
