This is the standard genuine OEM insert for the Vitoflame 100 VEM 18-40

meaning the contacts open when the pressure drops to the cutout setpoint and close when the pressure rises to the cut-in point

protecting internal windings from excessive heat and mechanical stress

25" diameter probe is built to withstand high-velocity airflow and moisture

Bard 8201-130BX Relay R-410A This is the standard genuineIf you're dealing with a sticking blower control or intermittent signal loss in a Bard wall mount unit, the Bard 8201 130BX Relay is the direct OEM replacement you need to restore circuit integrity. This is a Single Pole Double Throw (SPDT) Pilot Duty Relay specifically engineered for low voltage control circuits, frequently utilized for blower speed sequencing and fan logic in I30H, W24AF, and various K series models. Unlike generic substitutes that