You can verify this by checking the label on your existing part or using a digital manometer to measure the actual draft pressure during the startup sequence

the extended 72-inch length provides the necessary clearance for large-scale equipment footprints

Precision Fit: Designed for seamless integration with Spirax Sarco B Series covers

centered grip on both round and square damper shafts within the specified size range

increased amp draw on the blower motor

McDonnell & Miller 194-A-7B Controller R-22 You can verify this byThe McDonnell & Miller 194 A 7B (Part Number 167100) is a heavy duty combination low water cut off and pump controller engineered for commercial and industrial steam boiler applications. Designed to handle a maximum pressure of 250 PSI, this unit integrates a high performance potentiometer switch to provide a proportional 135 ohm signal, ensuring a constant water level is maintained regardless of varying steaming rates. As a veteran grade float