So, I had some left over parts from a previous install. Now I'm close to installing my New Harman P43, yea, I decided to upgrade from the P38+. I need some Pelletvent pro parts. I notice every site I go to appears to be owned by the same entity. They all have the exact same prices down to the penny. What gives, no competition anymore? This stuff is not cheap either. I went to HD and the cheaper Dura vent stuff they carry connects to my Pro series pipe, any reason I can't mix and match? I don't think the Pro stuff is worth twice the money. I also love how they take a standard thimble punch a hole in it throw in a few feet of cheap flex for fresh air intake and jack the price up to $ 131 and change for an otherwise $50 wall thimble. What a ripoff. I don't mind paying a fair price for good stuff but this smells if you ask me. Rant over.