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Bard 5809-036 - Reducing Coupling

Bard part 5809-036 is an OEM 3/4 inch x 1/2 inch ID reducing coupling used in Bard wall-mount air conditioners and heat pumps to transition between two different line or tube sizes where a secure, leak-resistant connection is required. This fitting is commonly used in the refrigerant or service plumbing arrangement when restoring original routing and sizing after a repair, helping maintain proper flow and system integrity. Verify the inside diameter and the connection type used on your specific Bard model before ordering so it matches the existing tubing and installation method.


  • Technical Specifications
  • Product number: 5809-036
  • Manufacturer description: 3/4"X1/2" ID Reducing Coupling
  • HTS Code: "8415.90.8085"

$4.00 *

* Orders less than $50 may incure a minimum order fee.