Just for INFO,the 303 that comes in the blue bottle that is just labeled 'PROTECTANT Interior/Exterior' is the exact same product. I called the company and they confirmed that. They said the only difference was the color of the bottle, and they labeled it 'Aerospace' just to target a specific customer. So, the bottom line is to price shop it. I found it at O'Riley's on a BOGO sale last year and bought several bottles.