The NOS Remote Bottle Controls are the perfect add-on convenience accessory for electronically turning a nitrous bottle on and off. A simple flick of the switch eliminates the chore of opening the trunk to turn your bottle on or off. Operates on 12 volts DC and fits 5 lb. or larger nitrous bottles. All come complete with the necessary hardware, wiring, and easy to follow installation instructions. Features an NOS-exclusive low-profile design that fits all NOS 5-lb and larger bottle valves and a top quality NOS blue anodized finish.