Description
Product Overview
Product Overview
Lennox 78W57 is a pressure switch identified by its exact manufacturer part number.
Key Details
- Brand: Lennox
- Manufacturer Part Number: 78W57
- Product Type: Pressure Switch
- Condition: New
OEM Part Number
78W57
Application / Fitment
Use this part by exact OEM part number. No equipment-model fitment is claimed unless separately documented.
What to Verify Before Ordering
Verify the exact OEM part number and equipment application before ordering.
Fitment Help
Contact HVACProSales with the equipment model and existing part number if you need help confirming the correct replacement.
Manufacturer Part Number
78W57
Application / Ordering Verification
Verify the exact manufacturer part number and equipment application before ordering.
Need Help Confirming the Correct Part?
Share the manufacturer part number and equipment model for product-selection assistance.
