Klein 55421BP 14 Tool Backpack 4 Outside Pockets, 35 Inside Pockets, 14 1 2 in Overall Wd, Black 48UZ71 It has an on off switch It has an on off switch with a built in thermostat that lets you set the temperature at which it operates Faucet Operation Sensor Mounting Hole Center to Center Single Hole Number of Holes 1 Finish Chrome Flow Rate 1 Tool Backpack Taller Bag and Interior Pockets Allow for Long Screwdrivers Closure Type Zipper Number of Pieces 1 Number of Outside Pockets 4 Number of Pockets 39 Number of Inside Pockets 35 Web Strap No Shape Rectangle Reinforced Bottom No Number of Bags 1 Primary Application Electrician Drain Holes No Series Tradesman Pro Number of Shoulder Straps 2 Includes Laptop Pocket No