Hide Show DescriptionBohn 5709L 3 Wire Defrost Termination Switch. This is a genuine OEM replacement part from Bohn.5709LArmstrong AirLennoxAllied AirALLIEDDucaneConcord AirAIREASEMagicpakAllied Air EnterprisesConcordHeatcraft Refrigeration ProductsHEATCRAFTBohn Customer Reviews Hide Show Write a Review