Intermatic GMXST O 120 24 Hour 120V Electromechanical Timer, 21A H20S23Y2DG1 is faster and superior to is faster and superior to dry forms when applied frequently the 6000 valves are capable of high pressure applications and are recommended to be used on pump fed systems or high flow city water systems Captive trippers with 15 minute intervals on 24 hour models and 2 hour intervals on 7 day models 60 Hz Wire Size Max #12 AWG Operating Temperature Max (°C) 85 Operating Temperature Max (°F) 185 Operating Temperature Min (°C) 40 Operating Temperature Min (°F) 40 Product Depth (in) 3 3 4 Product Depth (mm) 95 Product Height (in) 10 Product Height (mm) 254 Product Width (in) 6 1 2 Product Width (mm) 165 Unit Carton Height (in) 4