Trim sizes will somewhat vary between manufacturer's, tank sizes and glass thickness. Plus there are some new tank sizes and oddball dimension tanks.
The lip on the trim will also vary somewhat between tank brands so glass canopies don't always fit between brands.
Eheim Pimpette #270
Eheim Pro II 2028; Classics Series -2215, 2217, 2260, 2262; Pro 2229 Wet/Dry