which is essential for accurate aquastat control and BAS system monitoring

this dual-stage or single-stage compatible switch protects sensitive internal components from irregular pressure fluctuations and potential mechanical failure

flush-mount appearance against drywall in residential or commercial laundry rooms

HVACR Grade: Specifically formulated to meet the requirements of pressure-tight connections in refrigeration and air conditioning applications

Calibrated for units with a 199

Dwyer Instruments SFI-100-3/4 Indicator R-22 which is essential for accurateThe Dwyer Instruments SFI 100 3 4 is a field proven sight flow indicator designed for immediate visual verification of fluid movement in pressurized systems. For an HVACR contractor, this 3 4" NPT inline flow indicator is essential for diagnosing flow issues in chiller systems, hydraulic lines, and industrial coolant loops. Built with a heavy duty bronze body and a rugged tempered glass window, it handles line pressures up to 125 psig and operating