Lochinvar & A.O. Smith 100208152 Gauge

Ensure your hydronic or domestic hot water system operates within safe parameters with the Lochinvar & A.O. Smith 100208152 Gauge. This professional-grade temperature and pressure gauge, often referred to as a tridicator gauge, provides critical real-time data for boiler and water heater maintenance. Specifically designed for high-accuracy monitoring, this replacement water heater gauge features a pressure scale of 0-75 PSI and a temperature range of 70-250°F. The 3/8" BT (Bushing Thread) bottom connection ensures a secure, leak-free fit for compatible manifolds. As a direct OEM replacement part, the 100208152 is cross-referenced and identical to the GTP2900 and GTP2900K models. Whether you are performing a routine inspection or troubleshooting a pressurized system, this HVAC pressure gauge delivers the rugged reliability that veteran contractors expect from the Lochinvar and A.O. Smith brands, ensuring your equipment meets specified operational benchmarks without the guesswork of aftermarket alternatives.

• Precise Dual Monitoring: Combined 0-75 PSI and 70-250°F scales allow for simultaneous tracking of thermal and hydraulic conditions.
• Universal Cross-Compatibility: This unit is a drop-in replacement for GTP2900 and GTP2900K series triometers.
• Industrial-Grade Construction: Built to withstand the high-demand environments of commercial and residential HVACR applications.
• Optimized Connection: Features a standard 3/8" BT fitting for straightforward installation into existing boiler tapings.

What is the difference between this and the GTP2900K?
Technically, they are identical. The 100208152 is the current manufacturer part number, serving as a direct replacement for the legacy GTP2900 and GTP2900K designations.

Can I use this on a high-pressure steam system?
No. This gauge is rated for a maximum of 75 PSI, which is standard for most hydronic heating boilers and domestic water heaters. Do not exceed the rated pressure capacity.

How do I ensure a proper seal during installation?
Apply a high-quality thread sealant or PTFE tape to the 3/8" bushing threads, ensuring you do not block the orifice, to prevent system leaks under thermal expansion.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.