The Burnham 8026082 Sight Glass is a critical OEM replacement part designed for high-visibility monitoring of water levels in hydronic and steam systems

Precise Thermal Calibration: Reliable 155

Does the Intermatic FF2H require a neutral wire

Key Benefits for Contractors: Direct Replacement: Engineered as the exact substitute for DFS-221-271

Its high max ambient temperature rating allows it to function as either a Mixed Air or Discharge Air sensor depending on system configuration

Rheem-Ruud SP12766 Vacuum Switch Els PW 17895 The Burnham 8026082 Sight GlassThe Rheem Ruud SP12766 Vacuum Switch is an essential OEM assembly engineered for high accuracy pressure monitoring in Power Vent 2 water heaters and compatible HVAC systems. Constructed with a heavy duty housing and a highly responsive internal diaphragm, this vacuum pressure switch serves as a critical safety interlock, ensuring that the inducer fan is pulling a sufficient draft before allowing the combustion cycle to proceed. Designed specifically