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Bard 139-429BX - Upper ERV wrapper

The Bard 139-429BX Upper ERV Wrapper (boxed) is an OEM sheet metal housing component used with Bard energy recovery ventilator (ERV) assemblies on compatible Bard wall mounted HVAC equipment. This wrapper helps enclose and support the upper portion of the ERV section so the ventilator integrates correctly with the unit cabinet, maintaining proper airflow paths and protecting internal ERV components during operation and service. If your existing wrapper is bent, rusted through, or damaged from handling, replacing it with the correct Bard 139-429BX part helps restore the intended fit and alignment of the ERV package and reduces the chance of air leakage, vibration noise, or rubbing issues that can come from a distorted housing. Confirm the part number against your unit model and serial to ensure proper compatibility before ordering.


  • Technical Specifications
  • Product number: 139-429BX
  • Manufacturer description: Upper ERV Wrapper - Boxed
  • HTS Code: "8415.90.8085"

$379.00

What does the "BX" suffix mean?

Bard uses suffixes like "BX" to manage parts internally. These do not change the physical form or function of the part.

A part number ending in "BX" simply means it is packaged in a box for shipping, rather than for internal assembly use.

Example: 8406-142BX is physically identical to 8406-142.