Lennox 18M63 Pressure Switch 321042-401 Does this include the necessary

Does this include the necessary gaskets or mounting hardware

Key Benefits for Contractors High-performance 115V motor provides a maximum 20-foot lift

this assembly features a normally open (NO) configuration with a 4

and vapors through photocatalytic oxidation

316155A is identical to 316155A/U

Lennox 18M63 Pressure Switch 321042-401 Does this include the necessaryThe Lennox 18M63 Pressure Switch is a high precision, two stage OEM furnace part specifically engineered for compatible Lennox, Armstrong, and Ducane heating systems. This dual action component provides critical monitoring of combustion air pressure, ensuring the inducer fan maintains the proper venting required for safe ignition and continuous high efficiency operation. With fixed set points of 0. 20" WC and 0. 45" WC, this switch accurately