Electrical24 volt, 60 HzAmbient rating–40°F to 175°F / –40°C to 80°CCapacity 1/2" x 3/4" straight through300,000Capacity 3/4" x 3/4" straight through350,000Capacity 1" x 1"720,000Capacity 3/4" x 1"530,000*Capacity 3/4" x 3/4"450,000*Pressure regulator settingsee Ordering DataMaximum inlet pressure14" W.C. (1/2 PSI)Comments* Using reducer bushings included in 1" valves.