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The MCDONNELL & MILLER 150S-M-HD Head Mechanism features a manual reset function, tailored for robust HVAC applications. This unit is designed as a direct replacement for model 150-M-HD, previously known as 173203.
Optimized for reliability and endurance, the head mechanism ensures stable operation within HVAC systems. Utilize this model for maintaining or upgrading temperature and pressure controls in heating systems.
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