McDonnell & Miller G-2-SS Probe Rod If the thermostat is sending

If the thermostat is sending 24V to the reversing valve but the slide fails to shift

The MARS 12969 features a case height of 2

This ensures gravity holds the condensate in the 180-degree bend

Precision Control: Critical for achieving accurate outdoor air intake and exhaust air management in pneumatic or electric control setups

McDonnell & Miller G-2-SS Probe Rod If the thermostat is sendingThe McDonnell & Miller G 2 SS Probe Rod (Part Number 179156) is a heavy duty 24 inch 316 stainless steel probe rod engineered for high demand liquid level control applications. Designed specifically for integration with Series 750B C3 and Series 750B C4 remote sensors, this non Teflon grounding probe provides the essential conductive path required for conductance type level sensors. The use of premium 316 stainless steel ensures superior corrosion