Pressure and Temperature Gauge Assembly for Ultra Gas Boilers
4 Available At All US Supply Locations

Weil-McLain 383-500-210 Pressure and Temperature Gauge Assembly – For Ultra Gas Boiler Systems
The Weil-McLain 383-500-210 is an OEM pressure and temperature gauge assembly engineered for use with Weil-McLain Ultra Gas Boilers. This dual-function component provides continuous monitoring of both pressure (in PSI) and temperature (in °F), offering accurate system diagnostics during startup, maintenance, or troubleshooting.
Product Function
Designed specifically for compatibility with Ultra Series boilers, this gauge assembly supports operational safety and efficiency by enabling quick visual reference of critical system values. The unit integrates directly into the boiler’s piping arrangement and helps ensure the boiler operates within specified performance parameters.
Key Features
- Dual Measurement Capability: Monitors both hydronic system pressure and temperature with a single device
- Factory Calibration: Pre-set for compatibility with Weil-McLain Ultra Series boilers
- Compact, Integrated Design: Combines two functions in a single gauge housing to conserve space and simplify diagnostics
- OEM Fit: Designed for direct replacement in specific Weil-McLain models, maintaining system integrity
- Visual Reference: Clear analog dial allows for at-a-glance inspection of key system values
Technical Specifications
- Part Number: 383-500-210
- Application: Weil-McLain Ultra Gas Boilers
- Measurement Ranges: 0–55 PSI / 60–260°F
- Connection Type: Threaded back-mounted stem (short shank style)
- Construction: Dial-face analog gauge with integrated pointer indicators
Installation Guidelines
This gauge assembly should be installed by a licensed HVAC or plumbing professional. It is a direct-replacement component and fits within the existing factory-designated port on the boiler. Proper isolation of the system and purging may be required during replacement. Follow all applicable Weil-McLain installation procedures and local mechanical code requirements.
Contractor Notes
- Verify compatibility with boiler model and series before ordering
- Use pipe thread sealant or tape rated for hydronic systems on threaded connections
- Inspect O-rings and sealing surfaces during installation to prevent leaks
System Compatibility
- Designed for Weil-McLain Ultra Series condensing gas boilers
- Consult boiler documentation for specific model fitment and mounting orientation
Summary
The Weil-McLain 383-500-210 Pressure and Temperature Gauge Assembly is a critical diagnostic component designed for Ultra Gas Boilers. With dual-function monitoring in one device, it provides vital system data in a compact, reliable format suitable for professional installations and boiler service environments.
Specifications
| Weight | 1.000000 |
|---|---|
| Length (inches) | 6 |
| Width (inches) | 5 |
| Item Type | Temperature Gauges |
| Brand | Weil McLain |
| MPN | 383500210 |
| Sub Type | Temperature Gauge Assembly |
| Temperature Range | 70 to 320 deg F |
| Height (inches) | 3.5 |
| Item Returns | This item can be returned |
