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The NEMA 1 rated enclosure protects the digital thermistor control logic
OEM Compatibility: Precision-engineered as a direct Trane replacement part for 5-ton capacity units
High Operational Efficiency: Advanced dry motor technology provides excellent wire-to-water efficiency
visible cracks on the silicon element
Dwyer Instruments SFI-100-3/4 Indicator 320819-301 The NEMA 1 rated enclosureThe 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
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