656-0021 | 3/4"N/O ANGLE 5/10# 4.6CV | Siemens Building Technology Used on_Model EFTC 140/199 Universal Fire Tube Wall/Floor Combi Gas Boilers **Key Features:** * Float block

656 0021 3 4"N O ANGLE 5 10# 4.6CV Siemens Building Technology Used on_Model EFTC 140 199 Universal Fire Tube Wall Floor Combi Gas Boilers **Key Features:** * Float block **Key Features:** * Float block 63B for accurate water level detection * Pressure rating of 50 PSI * 1IN NPT end connection for secure installation * Durable construction for long lasting performance * Ideal for boiler control applications **Benefits:** * Prevents boiler damage caused by low water levels * Ensures reliable and safe boiler operation * Easy installation and maintenance * Compatible with various industrial systems **Applications:** * Boiler control in commercial and industrial buildings * Water level monitoring in HVAC systems * Prevention of dry firing in boilers Discover the latest Low Water Cut Off Control with Float Block 63B at Our trusted HVAC store It is designed to withstand high pressures and temperatures