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Bard 553-529-4BX - ERV vent option door assembly

Bard 553-529-4BX is an OEM ERV vent option door assembly used on select Bard wall-mounted packaged units to cover and properly seal the factory ERV ventilation opening so the ERV option can be installed and operate as intended. This is an EXTERIOR CABINET COMPONENT finished in Buckeye Gray textured enamel to match factory units, and the exterior enamel coating has been tested to withstand over 1000 hours of salt spray tests per ASTM B117-03 for long-term durability. Ensure this matches the color of your Bard unit for seamless replacement. This listing is for the panel only. Reuse your existing fasteners, clips, and hardware.


  • Technical Specifications
  • Product number: 553-529-4BX
  • Manufacturer description: ERV Vent Opt Door Asy-Gr-Boxed
  • HTS Code: "8415.90.8085"

  • Previous Versions
  • S553-529-4 (Obsolete, superseded by 553-529-4BX)

$189.00

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.