Lennox Healthy Climate X8789 replacement filter
X8789 fits PCO16-28
This fit is supported by manufacturer documentation. Check your exact part and cabinet before ordering.
Not sure this is the filter installed in your home? Find where to check the part or cabinet number before buying.
Quick answers for Lennox Healthy Climate X8789
- What size is this filter?
- Nominal (label) size: 16 × 26 × 5 inches. Verified actual dimensions: 16.375 × 25.5 × 4.375 inches. These values describe different measurements, not two interchangeable filter types. Confirm the measurement context in the verified details below; do not infer fit from a size alone.
- What is its MERV rating?
- MERV 16 for this identified filter.
- Which cabinet models are verified?
- Manufacturer-backed models: PCO16-28. Confirm your installed cabinet before ordering.
Matching a nominal size or another part's MERV does not establish interchangeability. Review the supporting fit evidence before buying.
Essential verified details
- Brand
- Lennox Healthy Climate
- Nominal size
- 16 × 26 × 5 in
- Verified actual size
- 16.375 × 25.5 × 4.375 in · filter cartridge
- MERV
- 16
- Verified application
- PCO16-28
Before you buy
Match the exact part number: X8789. Confirm your cabinet in the verified application above.
Nominal and actual dimensions are not interchangeable. Do not substitute by size alone.
Verification detailsHow this answer is supportedManufacturer evidence, dimensions, relationships and verification dates.Show detailsHide details
Technical claims below come from the active canonical resolution. Merchant listings cannot strengthen them.
- Status
- Verified compatibility
- Last verified
- 2026-09-26
- Latest source retrieval
- 2026-09-24
- Traceability
- Complete for displayed technical claims
Dimensions
- Nominal size16 × 26 × 5 in · label/category size, not exact physical geometry
- Filter cartridge — actual16.375 × 25.5 × 4.375 in · source-backed physical measurement
Relationship evidence
- Fits cabinet · Lennox Healthy Climate PCO16-28Manufacturer-backed fit relationship for this exact filter and cabinet/model.LennoxPros · verified 2026-09-26 · source retrieved 2026-09-24View relationship source
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