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Carrier 58MEB filter sizes: 16 x 25 x 3/4, 20 x 25 x 3/4 and 24 x 25 x 3/4, as listed in the Carrier 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:
| Sizes found in the source table |
|---|
| 16 x 25 x 3/4 |
| 20 x 25 x 3/4 |
| 24 x 25 x 3/4 |
Extracted by script from the linked document. Read the excerpt to see which size applies to which cabinet or return.
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.
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.
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.
Manufacturer document for Carrier 58MEB
Last checked 2026-11-04. Manufacturers revise documents. If your unit's label disagrees, trust the label.
FURNACE
as shown in Fig. 27.
FILTER SIZE --- IN (mm)
CASING FILTER NOTE: Remove and discard bottom closure panel when bottom
WIDTH TYPE
IN (mm) Side Return†* Bottom Return* inlet is used.
17–1/2
(445)
(1) 16 X 25 X 3/4
(406 X 635 X 19)
(1) 16 X 25 X 3/4
(406 X 635 X 19)
Washable Step 6—Bottom Closure Panel
21 (533) (1) 16 X 25 X 3/4 1) 20 X 25 X 3/4 Washable
These furnaces are shipped with bottom enclosure panel installed
(406 X 635 X 19) (508 X 635 X 19) in bottom return-air opening. This panel MUST be in place when
24–1/2 (1 or 2)16 X 25 X 3/4 (1) 24 X 25 X 3/4
(622) (406 X 635 X 19) (610 X 635 X 19)
Washable side return air is used.
* Factory-provided with the furnace. Filters may be field modified by cutting filter To remove bottom closure panel, perform following:
material and support rods (3) in filters. Alternate sizes and additional filters can 1. Tilt or raise furnace and remove 2 screws holding front
be ordered from your distributor or dealer.
filler panel. (See Fig. 28.)
† Upflow only. Alternate sizes and additional filters may be ordered from
your dealer. 2. Rotate front filler panel downward to release holding tabs.
3. Remove bottom closure panel.Carrier 58MEB filter sizes: 16 x 25 x 3/4, 20 x 25 x 3/4 and 24 x 25 x 3/4, as listed in the Carrier 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 x 3/4; 20 x 25 x 3/4; 24 x 25 x 3/4.
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.
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.
Every size found in the source table is 3/4 in. thick: 16 x 25 x 3/4, 20 x 25 x 3/4 and 24 x 25 x 3/4. Pending human review; check the excerpt.
Manufacturer document for Carrier 58MEB (https://www.shareddocs.com/hvac/docs/1009/Public/0A/58MEB-05SI.pdf), last checked 2026-11-04.