Aprilaire 4238 Circuit Board;
Aprilaire 4238 Circuit Board

Aprilaire #4238 Circuit Board for Model 700, 760, 760A, 768.  Includes wiring harness.  This part does not work with the 700A / 700M models (see relay part # 4740).

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Aprilaire #4238 Circuit Board for Model 700, 760, 760A, 768.  Includes wiring harness.  This part does not work with the 700A / 700M models (see relay part # 4740).

  • Aprilaire #4238 Circuit Board for Model 700, 760, 760A, 768
  • This part does not work with the 700A / 700M models (see relay part # 4740)
  • Includes wiring harness
  • Product Dimension:6.0"L x 6.0"W x 6.0"H
  • Aprilaire #4238 Circuit Board for Model 700, 760, 760A, 768
  • This part does not work with the 700A / 700M models (see relay part # 4740)
  • Includes wiring harness
  • Product Dimension:6.0"L x 6.0"W x 6.0"H