Correction- Aurora web page is www.auroramarine.com. And it gives Canadian sources.

Hi Rich, re your fogged ports.
We had the same problem ...extremely fogged windows, couldn`t see through them. We tried a number of cleaners , ie various Mirror Glaze products...no joy. When we had given up my wife noticed a product at our local marina called Clear View, it is manufactured by Aurora in Can ( instructions in both official languages). It is a 2 bottle package, one is a cleaner and the other is a protector. The work was laborious, I`m told ( my wife took on the job) but the results are fantastic...looks like brand new plastic. My advice is, if your ports don`t leak, try to clean them before going to the trouble and potential leak generating activity of replacing them. jc.