both parts are technically identical

Durable Construction: Built to withstand constant thermal cycling within the furnace cabinet without drifting from its set point

this Class 2 transformer is a versatile solution for technicians requiring a robust replacement for the White-Rodgers 90-4011M or similar 40VA units

or unpainted surfaces from previous footprints

Engineered for industrial-grade durability in high-cycle HVAC control systems

Johnson Controls V-9502-100 Positioner Spring both parts are technically identicalThe Johnson Controls V 9502 100 is an essential positioner spring engineered for precise integration with V 3000 actuated valves. Designed for heavy duty pneumatic systems, this component ensures stable and accurate control by providing a fixed operating span tailored to specific stroke lengths. For a 1 2 inch stroke, it provides a 3. 6 PSI span, while a 3 4 inch stroke configuration yields a 5. 1 PSI span. By translating control signal changes into