20x25x5 Air Filters
20x25x5 is 5" whole-home media air cleaner cabinets. It is available in MERV 8, MERV 11, and MERV 13 (deep media keeps airflow resistance low even at MERV 13). A 20x25x5 pleated filter typically lasts 9–12 months. The 20x25x5 label is the nominal size; the actual filter measures about 19.5 x 24.5 x 4.75 inches.
About the 20x25x5 air filter
The 20x25x5 air filter is used in 5" whole-home media air cleaner cabinets. As with all air filters, the size is given as length x width x depth in inches. The 20x25x5 label is the nominal size; the actual filter measures about 19.5 x 24.5 x 4.75 inches.
If your system uses 20x25x5, you can choose the efficiency that fits your needs — from basic equipment protection up to MERV 13 for allergies, pets, and wildfire smoke. Because this is a deep-media filter, you get high efficiency with low airflow resistance and a long service life.
20x25x5 MERV options
| MERV | Captures | Best for |
|---|---|---|
| MERV 8 | Dust, lint, pollen | Basic protection |
| MERV 11 | Above + pet dander, fine dust | Pets, mild allergies |
| MERV 13 | Above + smoke, bacteria | Allergies, asthma, smoke |
When to replace a 20x25x5 filter
A 20x25x5 (5") filter typically lasts 9–12 months. Replace it sooner if you have pets, allergies, or during wildfire smoke season. Hold it up to light — if you can't see through the media, it's time to change it.
Frequently Asked Questions
What systems use a 20x25x5 air filter?
20x25x5 is used in 5" whole-home media air cleaner cabinets. Check the size printed on the side of your current filter to confirm before ordering.
What is the actual size of a 20x25x5 filter?
The 20x25x5 label is the nominal size; the actual filter measures about 19.5 x 24.5 x 4.75 inches. Always order by the nominal size (20x25x5) for standard filters.
Can I get a 20x25x5 filter in MERV 13?
Yes. 20x25x5 is available in MERV 13 pleated for maximum particle capture, as well as MERV 8 and MERV 11. Custom efficiencies and frames are also available.
How often should I replace a 20x25x5 filter?
Typically every 9–12 months, and more often with pets, allergies, or during smoke season.
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Need help choosing the right filter?
Talk to our Canadian air filtration team. Call 1-888-973-3635 or request a quote.