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Bard 553-777BX - Filter Door Assembly

The Bard 553-777BX filter door assembly is an OEM access door used on select Bard wall mounted HVAC units to close off the return air filter compartment, helping keep airflow properly routed through the filter and protecting the filter area from weather and tampering. Replacing a damaged or missing filter door can prevent air bypass that reduces filtration and can contribute to coil and blower contamination over time. This is a genuine Bard replacement part intended for proper fit and dependable service; confirm compatibility by matching your unit model and serial number and comparing the original door style before ordering.


  • Technical Specifications
  • Product number: 553-777BX
  • Manufacturer description: Filter Door Assy -Alum -Boxed
  • HTS Code: "8415.90.8085"

  • Previous Versions
  • 553-631BX (Obsolete, superseded by 553-777BX)

$121.00

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.