Find the exact filter your furnace or fridge takes.

Every size on Filter Size Finder comes from the manufacturer's own manual or spec sheet, and we link the document so you can check it yourself. No guessing.

Furnace filters (12 models) Fridge filters (5)

📄 Sourced, not scraped

Each page cites the exact manual table it came from.

📏 Nominal vs actual

We explain why "16x25" measures 15.5 x 24.5.

🔒 Chip-locked filters

We flag fridges that reject non-OEM filters (like GE XWFE).

Recently checked

Carrier 59SC6A gas furnace
Source: Installation Instructions 59SC6A-01SI, Table 9 – Air Filter Selection

Carrier 59TP6C gas furnace
Source: Installation Instructions 59TP6C-01SI, Tables 9 and 10

Carrier 59TP7A gas furnace
Source: Installation Instructions 59TP7A-01SI, Tables 9 and 10

Carrier 59MN7B modulating gas furnace
Source: Installation Instructions 59MN7B-02SI, filter sizing tables

Lennox SL297NV gas furnace
Source: SL297NV Installation Manual, Table 1 – recommended filter sizes

TM9E series 95% gas furnace (Johnson Controls)
Source: TM9E Installation Manual, Table 3 – Recommended Filter Sizes (High Vel