Originally Posted by Leary54
I replaced mine with a stainless steel tip got tired of looking at that rusty tip.
Thanks much. I was afraid to do that. I figured - perhaps and apparently wrongly - that the design was intentional to handle the direction of heat from regeneration and possibly provide back pressure. Otherwise I can't imagine why they went with such a strange design. Then again, given how quickly the thing started to rust maybe they didn't give it much thought at all. Just fabricated a cheap piece of metal into a funny shape - sprayed some non-heat resistant paint on it and called it a day.
Would like to hear from others who have done the same or were able purchase the replacement.