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Daikin DM92SE furnace: filter size

Daikin DM92SE filter sizes: 16 x 25 and 20 x 25, as listed in the Daikin 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
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 Daikin DM92SE
Last checked 2026-10-29. Manufacturers revise documents. If your unit's label disagrees, trust the label.

Excerpt from the source

Minimum Filter Sizes
                                 DM92SE        DM92SE         DM92SE           DM92SE             DM92SE                  DM92SE           DM92SE       DM92SE
                                 0403BN        0603BN         0803BN           0804CN             0805CN                  1004CN           1005CN       1205DN
                                                         (1) 16 x 25                        (1) 20 x 25 (bottom)        (1) 16 x 25          (1) 20 x 25 (bottom)
    Filter Size (in²) (Qty)                          (side or bottom)                       or (2) 16 x 25 (side)    (side or bottom)        or (2) 16 x 25 (side)
Note: Other size filters of equal or greater dimensions may be used. Filters may also be centrally located.
SS-DM92SE                                                                       www.daikincomfort.com                                                                       5
DM92SE Airflow Data
                                                                      CIRCULATION AIRFLOW DATA
                      DIP                                 External Static Pressure, (Inches Water Column)
                                   0.1           0.2           0.3         0.4         0.5        0.6                      0.7            0.8    0.9     1
    Model          SWITCHES
                   S2-3 , S2-4    CFM           CFM            CFM            CFM            CFM            CFM           CFM            CFM     CFM    CFM
                    OFF OFF       628            582            530           478            428            370            319            282    239    201
    DM92SE          ON OFF*       806            762            719           676            633            594            551            506    463    418
    0403AN         ON ON**       1111           1071           1033           1002           971            936            905            871     839    807
                   OFF ON**      1359           1322           1290           1258          1229           1203           1176           1148    1122   1095

FAQ

What size filter does the Daikin DM92SE use?

Daikin DM92SE filter sizes: 16 x 25 and 20 x 25, as listed in the Daikin 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. 16 x 25; 20 x 25.

How often should I replace the Daikin DM92SE 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 Daikin DM92SE use more than one filter size?

Yes. The source table lists 2 sizes: 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 Daikin DM92SE (https://cdn.daikincloud.io/PIM/Assets/Documents/SS-DM92SE.pdf), last checked 2026-10-29.