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York TM8V furnace: filter size

York TM8V filter sizes: 14 x 25, 16 x 25 and 20 x 25, as listed in the York source document's filter table. Which size fits depends on your cabinet and return. This page is pending human review, so check the source excerpt below.

Auto-extracted · review pending Filter sizes auto-extracted from the manufacturer document.

Last checked against the manufacturer document:

Filter sizes by cabinet / model

Sizes found in the source table
14 x 25
16 x 25
20 x 25

Extracted by script from the linked document. Read the excerpt to see which size applies to which cabinet or return.

Measuring a furnace air filter's edge with a tape measure
Illustration only. Not this manufacturer's part.

Replacement interval

General guidance (not from this manual): check monthly and replace 1-in. filters every 1–3 months, or follow the filter maker's guidance and your owner's manual.

Before you buy

Pull the old filter and read the size printed on its frame. Nominal sizes are rounded up: a 15.5 x 24.5 in. filter is sold as 16 x 25.

MERV notes

Your furnace manual lists the filter's dimensions, not its MERV rating. Higher-MERV filters restrict more air. Manufacturers such as Carrier recommend keeping the clean-filter pressure drop under 0.2 in. w.c. (ideally under 0.1). Lennox warns that an over-restrictive filter can trip the high limit in winter and freeze the coil in summer. If you want MERV 11–13, a 4-in. media cabinet is the usual route. Ask an HVAC tech to check static pressure. Nominal sizes are rounded: a filter labeled 16 x 25 x 1 actually measures about 15.5 x 24.5 x 0.75.

Related models

Where this data came from

Manufacturer document for York TM8V
Last checked 2026-11-06. Manufacturers revise documents. If your unit's label disagrees, trust the label.

Excerpt from the source

      120 (35.1)                2000 (56.6)                   C              21              53.3           19 7/8            50.5             13.6            34.5
SECTION III: FILTERS                                                                Table 3: Recommended Filter Sizes (High Velocity 600 FPM)
FILTER INSTALLATION                                                                       CFM                 Cabinet                 Side                  Bottom
                                                                                        (m³/min)               Size                   (in)                   (in)
                       !     CAUTION                                                  1200 (34.0)
                                                                                      1200 (34.0)
                                                                                                                   A
                                                                                                                   B
                                                                                                                                     16 x 25
                                                                                                                                     16 x 25
                                                                                                                                                            14 x 25
                                                                                                                                                            16 x 25
 All filters and mounting provision must be field supplied. All installa-
 tions must have a filter installed.                                                  1600 (45.3)                  C                 16 x 25                20 x 25
                                                                                      2000 (56.6)                  C              (2) 16 x 25               20 x 25
All applications require the use of a field installed filter. All filters and
mounting provision must be field supplied.                                          NOTES:
                                                                                       1. Air velocity through throwaway type filters may not exceed 300 feet per
Filters must be installed external to the furnace cabinet. DO NOT                          minut

FAQ

What size filter does the York TM8V use?

York TM8V filter sizes: 14 x 25, 16 x 25 and 20 x 25, as listed in the York source document's filter table. Which size fits depends on your cabinet and return. This page is pending human review, so check the source excerpt below. 14 x 25; 16 x 25; 20 x 25.

How often should I replace the York TM8V filter?

General guidance (not from this manual): check monthly and replace 1-in. filters every 1–3 months, or follow the filter maker's guidance and your owner's manual.

Why doesn't my filter measure exactly 16 x 25?

Filter sizes are nominal (rounded). A filter sold as 16 x 25 x 1 actually measures about 15.5 x 24.5 x 0.75 in. Buy by the nominal size printed on the frame.

Does the York TM8V use more than one filter size?

Yes. The source table lists 3 sizes: 14 x 25, 16 x 25 and 20 x 25. Which one applies depends on your cabinet and return; check the excerpt (pending human review).

Where does this information come from?

Manufacturer document for York TM8V (https://www.yorknow.com/pub/media/documentation/tm8v_installguide.pdf), last checked 2026-11-06.