the kit includes a factory-specified 10 PSI feedback spring

It is engineered for use with the Johnson Controls TE-6000 series temperature elements

this unit handles dampers up to approximately 4 to 5 square feet

Designed specifically for compatibility with Reznor F-50 and F-75 models

Viessmann 7835169 Ionization Electr. 340155-7024 the kit includes a factory-specifiedThe Viessmann 7835169 Ionization Electrode is a critical flame sensing component engineered specifically for high capacity Vitodens 200 W B2HA condensing gas boilers. Designed to handle the rigorous thermal demands of the B2HA 399 and 530 models, this electrode provides the millivolt signal necessary for the burner control unit to verify flame presence safely and consistently. This kit includes the required electrode gasket to ensure a gas tight seal