Fulton Boiler 2-40-000420 Relay R-448A providing reliable flame regulation and

providing reliable flame regulation and safety shut-off protocols

ensuring the system resumes operation once internal temperatures return to a safe threshold

OEM Specification: Ensures perfect pin-to-pin mapping and terminal compatibility for Johnson Controls-manufactured equipment

This 5-inch vent cap is a critical component of the exhaust vent system

Engineered to eliminate false cycling and provide consistent pressure switch 1

Fulton Boiler 2-40-000420 Relay R-448A providing reliable flame regulation andThe Fulton Boiler 2 40 000420 Relay is a critical 120V low water safety relay designed for demanding steam and hydronic applications. As a genuine OEM Fulton replacement part, this component integrates directly with your boilers control circuit to provide precise low water cutoff (LWCO) monitoring and pump control. Maintaining proper water levels is essential to prevent dry firing and catastrophic pressure vessel failure; this relay ensures that if a