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

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

this specific assembly is sized for the higher-capacity RDH 250-400A units

The inclusion of high-tensile cords provides the necessary strength to resist elongation under heavy start-up loads

Crown Engineering 21735 Electrode 321042-401 this housing is designed toAs 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