Lochinvar & A.O. Smith 100163259 Sight Glass Kit 323613-751 Key Benefits: Optimized Airflow: The

Key Benefits: Optimized Airflow: The 23-degree pitch moves high volumes of air efficiently

allowing technicians to modulate fan speed based on ambient temperature and load requirements

and rooftop packages to manage compressor lockout conditions effectively

Built with heavy-duty bearings and a standard NEMA frame mounting pattern

Lochinvar & A.O. Smith 100163259 Sight Glass Kit 323613-751 Key Benefits: Optimized Airflow: TheThe Lochinvar & A. O. Smith 100163259 Sight Glass Kit is a critical OEM replacement part designed for high performance visual monitoring in Lochinvar Knight and A. O. Smith residential and commercial boilers. Engineered for high pressure HVACR environments, this kit allows technicians to verify flame ignition and combustion stability without compromising the integrity of the heat exchanger seal. As a direct replacement for obsolete part numbers