What Size Filter Does a York AP24BX21 Use?

York AP24BX21 takes

16x20x1

Replace
Typically every 1 to 3 months

The unit does not ship with a filter. This size fits the built-in 1 inch filter rack. Disposable or permanent filters both work.

About this size: 16x20x1 filter guide

Where to find the filter

  1. Turn off power to the air handler
  2. Remove the filter access cover near the return air inlet of the cabinet
  3. Slide the old filter out of the internal filter rack
  4. Slide in the new 1 inch filter and replace the cover

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Common questions

What filter does the York AP24BX21 use?

It uses a 16x20x1 filter.

How often should I replace it?

Typically every 1 to 3 months. Replace sooner if the filter looks dirty.

Can I use a different brand of filter?

Only if it matches the part number or size listed above. Check your manual if you are unsure.

Source: manufacturer documentation

Other York models