Conbraco 20-104-10-7 3/4 Water Gauge 30067439-890 the switch internal diaphragm or

the switch internal diaphragm or contacts have likely failed

This furnace control board features advanced diagnostic LED indicators to streamline troubleshooting and ensure consistent airflow during peak demand

The MARS 12076 features industry-standard markings: 'C' for Common

Direct OEM Replacement: Replaces legacy part number 10625716 without requiring shaft modifications

corrosion-protected steel enclosure that meets UL 1995 plenum requirements

Conbraco 20-104-10-7 3/4 Water Gauge 30067439-890 the switch internal diaphragm orThe Conbraco 20 104 10 7 is a contractor grade 3 4 inch water gauge set engineered for reliable liquid level monitoring in high demand boiler and hydronic environments. This rough bronze water gauge assembly features a 1 2" NPT male connection and is equipped with a 5 8" OD x 7 3 4" length standard glass tube, providing a clear visual interface for fluid verification. Designed to meet ASME design requirements, the unit is constructed from heavy duty