Armstrong International A21191 Electrode Set R-410A providing more accurate sensing and

providing more accurate sensing and a longer operational lifespan than contact-based timers

Tool-Free Actuator Mounting: Simplifies field service and replacement

it is specifically pitched and sized for Heil Quaker and ICP systems

The PopTop quick-release actuator interface allows for one-handed attachment or removal

making it ideal for aggressive media

Armstrong International A21191 Electrode Set R-410A providing more accurate sensing andThe Armstrong International A21191 Electrode Set is a critical OEM replacement part designed for high precision water level monitoring in industrial and commercial humidification systems. This authentic water level electrode set of 3 is specifically engineered for compatibility with the Armstrong HumidiClean HC Series (including models HC 4100, 4145, 4300, and 4500) and GFH Series humidifiers. By utilizing advanced conductivity sensing technology,