The height is not the issue , it shouldn't be a problem at all for the Aqua Dapter. The issue is the very obvious weakness in the Mk3 XL Adapter, the metal is just too thin and thus the XL`s are just splitting in half after a matter of weeks! Aqua Dapter in fairness have been trying to sort these problems out and have already fixed the tap issues and are strengthening future XL adapters. Ive fitted my latest one to my Gardiners pole minus the gooseneck. I think the gooseneck is causing a lot of them to just shear of at the end!