Jay, the 2" rubber fit over the 2 1/2" ID Pipe? I went to lowes today looking for a 2 1/2" rubber hose but that is not a standard tubing size. I did however see a 3" to 2" adatper, and if the 2" fits over the TB than I'll be psyched cuz I'll just get a 3"x3" Fernco a 3" exhaust pipe, gromets for the inlets and a 3"x2" Fernco reduction tube.