Optimized Combustion: Heavy-duty 3200 RPM motor provides the consistent static pressure required for safe flue gas venting

including Corsair and Weather King units

Standard 3/8" ODF sweat fittings facilitate a seamless refrigerant line installation

Built with a 2-inch NPT female connection and a robust brass body

Fulton Boiler 2-40-000420 Relay R-22 Optimized Combustion: Heavy-duty 3200 RPMThe 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