Public beta · Human-reviewed size data
Your HVAC filter size check
Enter the nominal width, height, and thickness printed on the filter. We keep nominal labels separate from manufacturer-published actual dimensions so a size name is never treated as a physical measurement.
Comparing a printed label to a tape measurement? Read the nominal-versus-actual size guide.
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Exact nominal match
12 × 24 × 2
MPR 700 Dust, Pollen & Pet Dander Air Filters (2 inch) · United States catalog
Published actual size: 11.38 × 23.38 × 1.75 inFiltration rating: MERV 8 / MPR 700. Confirm that the equipment permits this rating before replacing a lower-rated filter.