Dwyer Instruments SFI-100-1 Indicator 326070-701 is a high-performance anti-siphon pressure

is a high-performance anti-siphon pressure vacuum breaker designed to prevent backsiphonage of contaminated water into the potable water supply

this is the official direct replacement package designed to fulfill the specifications of the previous E5-232A model

By restricting liquid flow from the condenser and bypassing hot discharge gas directly to the receiver

wall-mounted air quality sensor specifically engineered for integration into modern building automation systems (BAS)

this valve is UL listed and CSA certified

Dwyer Instruments SFI-100-1 Indicator 326070-701 is a high-performance anti-siphon pressureThe 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