legs

Hi all... TLDR: Any suggestions for brands who make a 4.5 or 6 gal hydronic expansion tank designed to sit on the floor? i.e. Air-valve not on the bottom, with appropriate stand/feet/legs I have a *very* small mechanical room with a lot going on. I have a 125,000 BTU/h combi-boiler " feeding...

I am planning to remove all rear leveling legs in a BOSCH dishwasher to fit into a 33 1/2 space. Has anyone experienced issues with leaking or problems at the time to service the unit as a result of lowering to the ground? Any guidance is appreciated. Thanks!