Weiss Tri-O-Meter Boiler Gauges Are Used For Use On All Types Of Hot Water Heating Systems.
Weiss Tri-O-Meter Boiler Gauges indicate water pressure, water temperature, and system head in feet of water. Available in a 2-1/2" dial with 1/4" NPT (threaded) rear connection, or a 3-1/2" dial with a 1/2" NPT lower or rear connection. Temperature ranges include 80-320°F and 60-260°F. PSI ranges up to 200.