Dwyer Instruments A-350 Aspirator Bulb 320819-301 Built with a robust 440/480Vac

Built with a robust 440/480Vac 50/60Hz coil voltage

providing the consistent air circulation necessary for maintaining system static pressure

It is the direct replacement for the legacy RS2210 and Aprilaire 8448 models

Precise Superheat Control: Maintains optimal evaporator efficiency to maximize heat transfer and protect the compressor

Dwyer Instruments A-350 Aspirator Bulb 320819-301 Built with a robust 440/480VacIf you're out in the field running leak checking tests or validating pressure switch calibration, the Dwyer A 350 Aspirator Bulb is a staple in the technicians bag. This manual pump is engineered to provide a reliable source of positive pressure or vacuum for various HVAC test instruments. By simply connecting your 1 4 inch tubing to the barbed fitting, you can generate the required pressure with a single hand. For vacuum applications, such as pulling