The GasStop Safety Shut Off is a must have safety feature – especially if you run your fridge on propane to keep it cool while you are moving down the road. We do not normally have our propane on while driving but have forgotten to turn off the tanks on occasion. The Airstream Life Store has a nice package put together that has everything you need to add this to your trailer. We are Airstream Life Store affiliates and appreciate you using our link to purchase (it is in the video description on YouTube)!