allowing contractors to service diverse systems with a single component

it secures firmly to the motor shaft via a heavy-duty set screw on the discharge side

including the Armor and Power-Fin series

This SPDT pressure switch is constructed with a durable diaphram and robust housing to withstand field conditions while maintaining high repeatability

Laars Heating Systems 2400-110 Stack Switch 320735-701 allowing contractors to service diverseThe Laars Heating Systems 2400 110 Stack Switch is a critical exhaust temperature sensor designed for commercial and residential boiler systems. As an OEM Laars replacement part, this bimetallic stack relay monitors flue gas temperatures to provide essential furnace safety control. Engineered specifically for Mark II H Series (sizes 60 130) and Mark II 9600 models (HWG & CB, sizes 150 250), it ensures the burner only operates when a safe draft and