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Bard 5201-019BX is an OEM heat pump liquid line filter drier supplied boxed for service replacement. Installed in the liquid line, this component helps protect the sealed refrigeration system by trapping contaminants and helping control moisture that can lead to acid formation, restrictions, or premature compressor wear. It is a direct-fit Bard replacement part intended to restore proper refrigerant cleanliness after a repair, component changeout, or whenever the system has been opened, and it is best selected by matching the exact Bard part number to your unit documentation to ensure correct fit and application.
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.