As conclusion we choosed 2 type of size.Medium : 411*131*137Large : 484*131*137This size is based on Shenhua H02 H03 fan size.And based on these size, we add optional specs like filter, annion.Air volume doesn’t matter this step, as main test has finished already and passed. So, plz kindly check if Shenhua can follow our DWG. I think this is final step for our project.And could you plz find replacement for Molex female connector? If you find we will add maker name on our DWG. Any question I can help you do not hesitate to contact me.