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

synchronized performance across a 90-degree stroke

preventing premature motor failure and optimizing heat transfer across the exchanger or coil

as a universal Amana-Goodman replacement

and PDP models

Laars Heating Systems 2400-110 Stack Switch 320735-701 it secures firmly to theThe 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