Weil McLain 383-600-002 Water Gauge Glass Set 5/8" x 10-5/8"

The Weil McLain 383-600-002 Water Gauge Glass Set provides clear visual monitoring of internal boiler water levels in steam heating applications. Installed on the side of boiler vessels using 5/8-inch gauge fittings, the 10-5/8-inch clear glass tube creates a direct liquid column connected to the boiler water space. Operating on hydrostatic balance, the water height inside the glass tube directly matches the actual level inside the vessel. Providing an immediate visual readout allows confirming proper water coverage over heating surfaces, verify automatic feeder operation, and support safe steam boiler management.