McDonnell & Miller G-4-SS Probe Rod This pneumatic control accessory is

This pneumatic control accessory is essential for clean-room or secure-facility applications where a "blind" cover is required to ensure consistent system calibration and energy efficiency

ensuring the seal does not degrade under localized heat stress

For technicians performing HVAC blower motor repairs

Technicians should always replace the elastomer seal when opening the cast aluminum housing to prevent potential gas leaks

Contractors should note that the 1/4" sizing is optimized for applications requiring tighter pressure regulation at higher inlet pressures

McDonnell & Miller G-4-SS Probe Rod This pneumatic control accessory isThe McDonnell & Miller G 4 SS Probe Rod (Part Number 179158) is a high grade 316 stainless steel grounding electrode engineered for demanding liquid level control applications in steam and hot water boiler systems. This 48 inch remote sensor probe is specifically designed for use with McDonnell & Miller RS sensors, such as those found in Series 750B C3 and 750B C4 cast iron chambers. As a non Teflon ground probe, it provides a reliable electrical