upgrade to asm g4x skimmer problem, please help

[rayyue]

hi

i know the asm g3 skimmer height is 24" tall and i also know the asm g4x skimmer height suppose is 30"tall.

now i got a g3 skimmer but the exact height is only 23.5 " +0.25 " space to remove the lid. now i want to upgrade to g4x. the problem is the height from sump base to the stand ceiling is only 29.75"tall.
so i'm thinking is it the g4x exact height is only 29.5"+ 0.25" (to remove the lid)=29.75" . if yes, that means i can upgrade my skimmer. even i need tiny a little bit taller than 29.75. let say is 29.8 or 29.85", i don't mind to use sand paper to make it thinner to make it fit in my stand.

anybody is using g4x now and can measure the exact height for me and is it 0.25" to lift up the lid.

thanks

[rayyue]

anyone can help me