Laars Heating Systems R2004100 Pressure Switch 321042-401 Constructed with a bi-metal composition

Constructed with a bi-metal composition for durability

this Resideo-controlled valve simplifies troubleshooting with a high-visibility LED status indicator

Energy Efficiency: Absorbs shock loads and dampens harmonics to protect sensitive motor and pump components

While primarily specified for Reznor waste oil heaters

Replacing a failing inducer pressure switch with this factory-specified unit restores the original pressure-sensing accuracy

Laars Heating Systems R2004100 Pressure Switch 321042-401 Constructed with a bi-metal compositionMaintain the industrial safety standards of your heating equipment with the Laars Heating Systems R2004100 Pressure Switch. This manual reset low gas pressure switch is a critical safety component designed for high output Laars commercial boilers and MagnaTherm water heaters. Engineered to detect hazardous drops in fuel pressure, the R2004100 interrupts the system's ignition cycle to prevent incomplete combustion and potential carbon monoxide buildup.