Fulton Boiler 2-40-000420 Relay 321142-301 the S1-800002 ensures precise dimensional

the S1-800002 ensures precise dimensional compatibility and flow characteristics for residential and light commercial equipment

utilizing standard mounting points to align with the heat exchanger outlet

This double-inlet blower wheel serves as the direct factory authorized supersedure for the legacy part number D6723302

facilitating a straightforward installation in bell-end or belly-band mounts

always verify if your existing 24V coil is functional or if a new COL12849 or similar coil is required for the repair

Fulton Boiler 2-40-000420 Relay 321142-301 the S1-800002 ensures precise dimensionalThe 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