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The Bard 800-0450BX Cooling Distributor (boxed) is an OEM refrigerant distribution component used in Bard wall mounted air conditioners and related packaged equipment to meter and evenly split liquid refrigerant into multiple capillary tubes feeding the evaporator coil. When a distributor is restricted, leaking, or physically damaged, you can see poor cooling, uneven coil temperatures, and icing that does not match normal operating conditions. Replacing it with the correct Bard 800-0450BX helps restore proper refrigerant flow balance, protects compressor operation, and supports stable superheat and coil performance. Verify compatibility by matching the part number to your unit model and serial tag or the Bard service literature before ordering, since distributors are often application specific by tonnage and circuiting.
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.