Welp... smaller than I thought... Front cap only adds ½" and the back cap with the inlet and outlet only adds ¾".
Total length of the whole thing is just a little under 13¾". So, according to my calculations... the fin area is bigger than I thought too... must be 12½" not 11½"... my bad. I think there was one that was 10½" though. I just don't have the model number. Sorry.
Hope that clears it up!
