Description
The Bard HVAC 8406-042BX is an OEM replacement pressure switch designed to deliver dependable, precise pressure monitoring in Bard HVAC equipment. Engineered to a 0.28″ water column setpoint, this pressure switch safeguards system operation by detecting pressure conditions and interrupting the control circuit when readings fall outside safe parameters — helping prevent equipment damage and ensuring consistent performance.
As a genuine Bard HVAC replacement part, the 8406-042BX is built to exact factory specifications, making it the ideal choice for technicians who demand a direct, no-compromise fit for Bard residential and commercial HVAC systems.
Key Features
- OEM Bard HVAC replacement pressure switch
- 0.28″ water column (W.C.) pressure setpoint
- Designed for precise pressure monitoring and system protection
- Direct factory-specification replacement — no modifications required
- Compatible with select Bard HVAC residential and commercial units
Why Choose an OEM Bard Replacement Part?
Using genuine OEM components like the 8406-042BX ensures your Bard HVAC system operates within designed parameters. Aftermarket substitutes may introduce fit or calibration issues that compromise system safety and efficiency. Trust the factory-engineered solution for long-term reliability.
Application
- Replacement pressure switch for compatible Bard HVAC systems
- Suitable for use by qualified HVAC technicians and service professionals







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