Well, just got mine - apparently they are 25.25" - makes contact with the racking arm if you move it around, but at least it gets low!
I guess that matches what the part number is (in mm), at least for the 7G and Half BBL
Anyone have a 1/2 bbl unitank that could give me the length of the coil from the underside of the triclamp to the bottom of the coil? Brewtech has a garage sale now and the coils are 50% off.. wanted to see how much longer they are than the 14g ones (for smaller batches)