Description
The A.J. Antunes 804111701 is a genuine OEM high and low gas pressure switch engineered for precise pressure monitoring and robust safety control in commercial HVAC, industrial burners, and gas‑fired equipment. This HLGP‑A model combines dual pressure sensing capabilities — monitoring high gas pressure from 2″ to 16″ water column (WC) and low gas pressure from 1″ to 6″ WC — to protect equipment and maintain safe operation across varying conditions.
Key Features
- Dual Pressure Ranges: High pressure 2″–16″ WC and low pressure 1″–6″ WC
- Switch Type: DPDT for reliable signal switching
- Reset Style: Manual reset ensures deliberate restart after alerts
- Sturdy industrial‑grade construction for long service life
- Standard NPT connections for easy integration







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