What tonnage systems does this valve support

Reliable Compatibility: Designed specifically for HVAC systems and exhaust fans

Extended Reach: A 5-foot capillary length allows for versatile bulb mounting away from the valve body

this housing is designed to accommodate the torque and airflow variations of both ECM motors and standard PSC motors

Integrated Safety Measures: Equipped with a 10

Crown Engineering 21735 Electrode 321042-401 What tonnage systems does thisAs a veteran HVACR technician, you know that ignition reliability is non negotiable for burner performance. The Crown Engineering 21735 Electrode is a direct replacement Gordon Piatt igniter specifically engineered for high demand industrial burner applications. Built with a 7 16 inch porcelain diameter and a 3 3 4 inch porcelain length, this electrode (OEM part number 921000 0700) ensures precise spark gap alignment and consistent arc delivery in