Original manufacturer option
Honeywell Home FC100A1037/U cabinet filter
Filter FC100A1037/U
Your search matches the manufacturer’s listed filter identifier.
Why this filter
Before you buy
This record confirms the manufacturer’s FC100A1037/U replacement for F100F2025/U. It does not confirm every F100 cabinet, a different regional suffix or a generic 20-by-25-inch filter slot.
Size and fit
The nominal size is 20 by 25 inches. Resideo lists actual measurements of 19.94 by 24.88 by 4.38 inches. A nominal size is a label, not the exact measured size; matching dimensions alone does not confirm a fit.
Filtration rating
Resideo labels this filter MERV 11. That air-particle capture rating is not a reason to choose a higher-rated filter without checking your equipment’s airflow requirements.
How this compares
This is a checked replacement, not a Best Overall or Best Value winner yet. Before choosing a winner, we need other filters we can trust, a fair comparison of how they work and how reliable they are, and current prices including shipping.
Filtration tests and details
These records explain which filter results we have checked and what their limits are. The same certification name does not mean two filters work equally well.
What we have verified about filtration
Manufacturer-supported fit does not by itself establish filtration efficiency, odor removal or superiority over another replacement. Those performance claims need their own reviewed evidence for the exact filter and equipment combination.
View sources
These sources explain the fit, features and filter test results described above. They are not retailer price checks.
Where to buy
We haven’t confirmed a current price and availability for this filter. Shopping comparisons are not available yet.