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The Bard 800-0197BX Cap Tube Assembly (boxed) is an OEM refrigerant metering component used in Bard wall-mount air conditioners and related packaged equipment to regulate refrigerant flow for stable cooling operation. Replacing a restricted, damaged, or leaking cap tube assembly helps restore proper evaporator feeding, supports correct suction and head pressures, and can prevent symptoms like poor cooling, coil frosting, or compressor stress. Because cap tube sizing is model-specific, confirm the exact part number match to your unit model and serial before ordering to ensure proper fit and performance with Bard factory specifications.
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.