This Rheem Pressure Switch is a safety device designed for HVAC (Heating, Ventilation, and Air Conditioning) systems. It functions by detecting changes in the system's pressure and responding accordingly to ensure optimal operation. The switch is typically used to sense a change in pressure which can indicate potential issues such as a blocked vent or a malfunctioning blower. This model is specifically designed for compatibility with various Rheem models, ensuring seamless integration into existing systems. It operates within a specific pressure range, opening or closing an electrical circuit based on the detected pressure changes. The product is constructed from durable materials for long-lasting use and reliability in various environmental conditions.