The York 165527, 9371DO-HS-009, 508827/00702 Air Pressure Switch (1 Unit) is a single pole, normally open pressure switch designed to monitor and control airflow in York HVAC systems. It activates or deactivates electrical circuits based on pressure changes to ensure safe and efficient furnace or air handler operation. With a set point of -0.90" on fall, this pressure switch provides precise and reliable performance under varying system conditions, maintaining safety and preventing improper ignition or airflow faults. Key Features Genuine York OEM air pressure switch Single pole, normally open configuration -0.90? on fall pressure setting for precise control Ensures safe and reliable furnace operation Durable construction for long service life Specifications Part Numbers: 165527, 9371DO-HS-009, 508827/00702 Type: Air Pressure Switch Switch Function: Single Pole Normally Open (SPNO) Set Point: -0.90" on fall Application: Furnace / Air Handler airflow monitoring Quantity: 1 Unit Brand: York Compatible Models G9T06012DHB13C FG9B06012DH11D GCGD42S21S2E P3DHB12N05501B PCLUBLD10N060B G9T12020UPD13C FC9C060B12DH11 P3DHD20N11201A PBLDBLD12N080 P2URD20N13001A and more Why Choose This Item Choose the York 165527, 9371DO-HS-009, 508827/00702 Air Pressure Switch (1 Unit) for accurate pressure sensing, reliable system protection, and OEM-grade quality. It?s the perfect replacement part to restore safety and efficiency in your York HVAC system.