Dwyer Instruments SFI-100-1 Indicator 320788-703 For contractors performing HVAC system

For contractors performing HVAC system repairs or coil upgrades

technicians can often restore signal strength by gently cleaning the rod with a fine-grit emery cloth or steel wool to remove carbon deposits

Common Questions: Can the manual reset be bypassed for automatic operation

ensuring no-drift performance

particularly in walk-in coolers and industrial evaporators

Dwyer Instruments SFI-100-1 Indicator 320788-703 For contractors performing HVAC systemThe Dwyer Instruments SFI 100 1 Indicator is a field proven sight flow indicator designed for immediate visual verification of fluid movement within 1" piping systems. Built with a rugged bronze body and a single tempered glass window, this unit is engineered to withstand demanding mechanical environments. It features a bright red ABS impeller that provides high visibility rotation, allowing contractors to diagnose flow status for both compatible