Actually, I was quite serious. The reason for the spare Prosine, RV Radio, and water pump is because these items failed and we couldn't wait for the factories to complete the overhaul on these items so we bought spare units and installed them. When the repaired items were returned, we just stashed them for future use. The engine air filter probably could be chucked but since I just cleaned an old one, I'll hang on to it until I need the room. Now, let me think, ˜Windshield Wipers', yea, that's it! My replies can sometimes take a while. I still work and travel hundreds of miles in the RV to jobs where I'm out of touch with the net.