I had this part blown by my own stupidity - left some water in for the Winter. The good part was the inside parts were still usable, the bad one that without dismantling half of the heater you'd have to cut some bits to have it mounted properly. After 7 seasons dismantling is a major undertaking so I bent some sheetwork on the side to be able to put this piece in. It may not look like new now but it works, and I will be more careful winterizing it this season.