Ensure safe and reliable operation of your heating system with this Pressure Switch Kit, compatible with Lochinvar part number 100166141 and a replacement for NC2-0461-00. Rated at 95" WC (Water Column), this normally closed switch monitors system pressure to help prevent unsafe conditions, protecting your boiler or water heater from damage due to airflow or venting issues. Key Features Direct replacement for Lochinvar 100166141 and NC2-0461-00 Rated at 95" WC for accurate pressure detection Normally Closed (NC) configuration for safety control Ensures proper airflow or combustion pressure in heating systems Includes necessary hardware for easy installation Specifications Part Numbers: 100166141, NC2-0461-00 Pressure Rating: 95 inches Water Column Switch Type: Normally Closed (NC) Application: Boilers, water heaters, and HVAC systems Includes: Pressure switch and mounting kit Compatible Models Model-specific list not provided ? compatible with Lochinvar systems requiring 100166141 or NC2-0461-00 Why Choose This Item This pressure switch kit is essential for maintaining safe operation and system integrity. Built to OEM specifications, it provides reliable performance and easy replacement, helping prevent costly repairs and downtime in residential and commercial heating systems.