Ashcroft 251009SW02LXLL15 Pressure Gauge 0-15 Psi

Product Description

The ASHCROFT 251009SW02LXLL15# is an analog pressure gauge designed for monitoring system pressure in HVAC, plumbing, and industrial service applications. It features a 2.5-inch dial with a 0 to 15 psi range and delivers 1 percent of full-scale accuracy. The stainless steel case and stainless steel wetted parts make it suitable for use in environments where corrosion resistance is required. It connects via a 1/4-inch lower-mount NPT thread, making it a straightforward panel or pipe installation. Licensed plumbers, HVAC technicians, and industrial service professionals typically specify this gauge for low-pressure monitoring where reliable readings and durable construction are priorities.

This gauge is suited for residential and light commercial applications where low-pressure monitoring is needed, such as water supply lines, hydronic heating systems, air lines, and similar low-pressure fluid or gas circuits. The lower-mount configuration positions the connection at the 6 o'clock position on the gauge body, which is standard for direct pipe or manifold mounting. The no-fill, dry dial design keeps servicing simple and avoids liquid-fill complications in temperature-variable environments.

Key Features

• 0 to 15 psi pressure range for low-pressure system monitoring
• 1 percent of full-scale accuracy for reliable readings
• 2.5-inch analog dial for clear, at-a-glance visibility
• Stainless steel case and stainless steel wetted parts for corrosion resistance
• Lower-mount 1/4-inch NPT connection for direct pipe or manifold installation
• Dry, no-fill dial construction — no liquid filler to manage or replace

Compatibility

Designed as an OEM-style replacement or new-installation pressure gauge for low-pressure plumbing, HVAC, and light industrial systems requiring a 1/4-inch lower-mount NPT connection and a 0 to 15 psi measurement range.

Installation Notes

Installation is typically performed by a licensed plumber or HVAC technician. Shut off system pressure and depressurize the line completely before removing an existing gauge or threading in this unit. Apply thread sealant tape or pipe dope to the NPT threads in accordance with IPC and local plumbing code requirements. Do not over-torque the gauge body — use a wrench on the hex at the gauge base only, not on the case itself.