DA-31-153-4 | 1-35# SPDT Merc Pres Switch | Dwyer Instruments Material_Low Lead Brass Upgrade your HVAC system with

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DA-31-153-4 | 1-35# SPDT Merc Pres Switch | Dwyer Instruments Material_Low Lead Brass Upgrade your HVAC system with**Dwyer Instruments DA 31 153 4 SPDT Mercury Pressure Switch** Dwyer Instruments DA 31 153 4 is a 1 35# SPDT Mercury Pressure Switch designed for precise pressure sensing and control in demanding industrial applications. This switch is engineered with a durable construction and reliable operation, ensuring accuracy and longevity. The DA 31 153 4 features a single pole, double throw (SPDT) design, providing versatile switching capabilities for