Ashcroft 93699XLL Pressure Gauge 4.5 in Rear Flange 0-300 Psi

Product Description

The ASHCROFT 93699XLL is an analog pressure gauge designed for industrial and mechanical service applications requiring accurate, reliable pressure measurement. The gauge features a 4.5-inch dial for easy reading at a distance, a rear flange mount configuration for panel or wall installation, and bronze wetted parts paired with an aluminum case. It operates across a range of 0 to 300 psi with an accuracy rating of 0.5 percent of scale. This gauge is installed by licensed plumbers, HVAC technicians, pipefitters, and mechanical contractors in systems where pressure monitoring is a routine service requirement.

This gauge is suited for residential and commercial plumbing, HVAC, and general industrial piping systems where a surface-mounted or panel-mounted pressure indicator is needed. The rear flange mount allows direct mounting to a panel face while the 0.25-inch threaded connection ties into standard pipe fittings. The non-liquid-filled design keeps the unit lightweight and appropriate for environments where fluid contamination is a concern. It is typically installed on boiler systems, compressed air lines, water supply systems, and similar mechanical piping circuits.

Key Features

• 4.5-inch analog dial for clear, at-a-glance pressure readings
• 0.5 percent of scale accuracy for reliable monitoring
• Rear flange mount for secure panel or wall installation
• Bronze wetted parts provide corrosion resistance in water and air service
• Aluminum case keeps overall weight low at 2.5 pounds
• Non-liquid-filled design suitable for vibration-low environments

Compatibility

Designed as an OEM-style replacement or new-install pressure gauge for residential and commercial plumbing, HVAC, and general mechanical piping systems using standard 0.25-inch NPT threaded connections.

Installation Notes

Installation should be performed by a licensed plumber, pipefitter, or qualified mechanical technician. Shut off system pressure and relieve all residual pressure in the line before removing or installing any gauge. Use appropriate thread sealant on the NPT connection per the applicable installation code. Do not over-tighten the threaded connection, as this can damage the gauge socket or bronze internals.