Aprilaire Yellow Orifice #4231

SKU: ap4900  |  Model: 4231
$5.49

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Description

The Aprilaire Yellow Orifice #4231 is the tiny nylon components which accurately meter the flow of water into your humidifier, allowing a specific amount of water unique to your model.

Compatible Models

  • 400, 400A, 400M
  • 500, 500A, 500M
  • 550, 550A
  • 558
  • 560, 560A
  • 568
  • 600, 600A, 600M

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