Lochinvar & A.O. Smith 100187879 Disk 320074-702 specifically engineered to provide a

specifically engineered to provide a direct replacement for 539617

this OEM replacement part (also identified under part number 67186101) is specifically designed for Daikin-McQuay equipment

This 250-foot roll of 3/8" OD plenum rated pneumatic tubing is manufactured from a flame-retardant

For systems exceeding 2 PSI nominal pressure

this OEM replacement part is essential for verifying proper blower operation and flue venting before the ignition sequence begins

Lochinvar & A.O. Smith 100187879 Disk 320074-702 specifically engineered to provide aFor veteran technicians servicing high output commercial boilers and water heaters, the Lochinvar & A. O. Smith 100187879 Pyrolite Insulation Disk is a critical OEM component for maintaining thermal integrity. Manufactured from specialized Pyrolite ceramic fiber, this 3. 34 lb high density disk is engineered for high temperature HVAC systems where standard insulation fails. It provides superior thermal conductivity resistance to minimize heat loss in