Summerset Mechanical timer with manual emergency shut off. 1 hour countdown timer - ESTOP1-0H

Summerset Estop1-0H 3 3/8 Inch E-Stop 1-Hour Mechanical Timer With Emergency Shut-Off Unique All Mechanical Gas Shut-Off Timer With Built-In Emergency Stop - No Power Required Mechanical Timer With Manual Emergency Shut-Off 1 Hour Countdown Timer High Btu Capacity Safest Gas Timer Available In The Industry Innovative Multi-Port Design Provides Installation Flexibility 1/2 Inch Npt Inlets And Outlets (Side And Back) Six (6) Mounting Holes (Front And SIZe) For Secure Installation Natural Gas (Ng) Or Liquid Propane (Lp) - No Conversion Necessary Dimensions: Width: 3 3/8 Inch Height: 5 1/8 Inch Depth: 3 3/4 Inch