Rheem-Ruud 42-105601-29 SPST Pressure Switch WC - 0.2

The Rheem-Ruud 42-105601-29 is a genuine OEM single-pole single-throw (SPST) pressure switch designed for use in Rheem and Ruud HVAC equipment. This critical safety component monitors air pressure within the system to ensure proper operation and prevent hazardous conditions.

Key Features:

• Pressure rating of 0.2 inches water column for precise air pressure monitoring
• Self-cleaning contacts for reliable long-term performance
• SPST configuration for single-circuit control applications
• Genuine Factory Authorized Part for guaranteed compatibility
• Protective device that stops system operation under unsafe conditions

Pressure switches are essential safety devices in gas furnaces, water heaters, and HVAC systems. This switch opens the electrical circuit when pressure conditions fall outside safe operating parameters, preventing equipment damage and ensuring proper combustion air flow. When replacing a pressure switch, it is critical to use the exact OEM replacement part, as pressure settings are precisely calibrated and any variation could create safety hazards.

Note: Professional installation is recommended. Always shut off power and gas before servicing combustion controls, and verify proper system operation after installation.