Lochinvar 100146999 Triometer Gauge 75 PSI 2.5″ 3/8″ NPT Back
It is designed for use in hydronic heating systems and is compatible with multiple Lochinvar hydronic heater models. • Manufacturer Part #: 100146999. • Suitable for various Lochinvar models such as the Copper-Fin II, Power-Fin series, and Knight.