Weiss Instruments WEISS-CTP25R Tri-o-meter Pressure Gauge

Product Description

The Weiss Instruments WEISS-CTP25R is a Tri-O-Meter combination pressure gauge with a 2.5-inch dial face and a 0.25-inch NPT rear connection. Tri-O-Meter gauges are used to simultaneously read pressure, temperature, and vacuum in a single instrument, reducing the number of test points needed during system diagnostics. This gauge is suited for HVAC, refrigeration, and hydronic system service work. Licensed HVAC technicians and refrigeration mechanics are the primary installers and users of this instrument in field service and commissioning applications.

The WEISS-CTP25R is designed for use in residential and light commercial HVAC and refrigeration service applications. Its rear-connection configuration makes it compatible with panel-mount or manifold-style installations where a straight back entry is required. The 0.25-inch NPT rear port fits standard Schrader or pipe-thread service access fittings commonly found on refrigerant circuits, hydronic loops, and low-pressure gas systems.

Key Features

• 2.5-inch dial face for clear field readability
• 0.25-inch NPT rear connection for panel or manifold mounting
• Tri-O-Meter design combines pressure, temperature, and vacuum indication
• Rear-entry port orientation suits tight or inline installation points

Compatibility

Designed as an OEM-style replacement or service gauge for residential and light commercial HVAC, refrigeration, and hydronic systems requiring a 2.5-inch, 0.25-inch NPT rear-connection pressure gauge.

Installation Notes

Installation is typically performed by a licensed HVAC technician or refrigeration mechanic. Isolate and depressurize the circuit before removing or installing any gauge fitting. Use appropriate thread sealant on NPT connections per system requirements and applicable mechanical codes. Do not over-tighten the NPT fitting, as this can crack the gauge body or damage the port threads.

Technical Specifications

• Dial Size: 2.5 inches
• Connection Size: 0.25 inches NPT
• Connection Location: Rear
• Gauge Type: Tri-O-Meter (Pressure, Temperature, Vacuum)

Standard Information

• Brand: Weiss Instruments
• Manufacturer Part Number: WEISS-CTP25R