For standard single-stage gas or electric systems

What range of shaft sizes does this clamp support

Installation Flexibility: Fully guided check assemblies permit vertical or horizontal mounting configurations

With its critical counter clockwise rotation and a standard 1/2 inch bore

Key Benefits Precise Thermal Regulation: Features a fixed 175°F trip point to prevent over-temperature conditions in the heat exchanger

Hoffman Controls 850-6MS Sensor Selector 30067439-890 For standard single-stage gas or6Stg Multiple Sensor Selector 850 6MS is the direct replacement for 850 2MS (replacement has 6 sensor input, use 2 inputs)