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The Bard 5201-023BX is a 3/8 inch AC filter drier used in the refrigerant liquid line to help capture moisture, acids, and debris after a repair or when replacing a sealed system component, protecting the metering device and compressor from contamination that can lead to restrictions and premature failures. As a Bard OEM service part, it is intended to match factory fit and connection sizing for compatible Bard wall mounted HVAC units. For best results, confirm your unit model and the required connection size before ordering, and have it installed by a qualified HVAC technician following proper evacuation and charging procedures.
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.