Zonefirst ZDB-12X18 12HX18W Parallel 24V 2-Pos S/R Els PW 29614 The Robertshaw 1720-008 is a

The Robertshaw 1720-008 is a professional-grade thermomagnetic safety valve engineered for critical gas flow interruption in commercial cooking and heating applications

While functional in many positions

0KW Electric Heater Element in a lower voltage system will significantly degrade the heat output

230V unit operates at a consistent 3450RPM to ensure the safe expulsion of combustion gases through the heat exchanger

Zonefirst ZDB-12X18 12HX18W Parallel 24V 2-Pos S/R Els PW 29614 The Robertshaw 1720-008 is aThe Zonefirst ZDB 12X18 is a professional grade 12HX18W Parallel 24V 2 Pos S R zone damper engineered for high static HVAC environments. Built with a heavy duty extruded aluminum frame and 3 inch parallel blades, this bottom mount zone damper ensures quiet, low leakage performance in rectangular ductwork. The unit utilizes a 2 wire spring return motor rated for 24VAC, providing a fail safe open position when de energized and a powered closed state.