This looks like it might be just fine for this application. Also PETG holds up better than PLA in sunlight (heat):

https://www.amazon.com/3DF-Printing-Filament-Transparent-Dimensional/dp/B09Q4PYD29/ref=sr\_1\_1\_sspa?crid=271SVB769B39B&keywords=geeetech+red+transparent+filament&qid=1659185911&sprefix=geeetech+red+transparent+filament%2Caps%2C84&sr=8-1-spons&psc=1&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUFHTUsyMjJXOEpVMUImZW5jcnlwdGVkSWQ9QTA3NjY4MzYxQkhTWUVVNFVGOURWJmVuY3J5cHRlZEFkSWQ9QTAyMDQyMTEzREwzVVBFTzhIQURLJndpZGdldE5hbWU9c3BfYXRmJmFjdGlvbj1jbGlja1JlZGlyZWN0JmRvTm90TG9nQ2xpY2s9dHJ1ZQ==