som du säger, det kan inte vara så

som du säger, det kan inte vara så stor skillnad med samma vara.

Resultat (engelska) 1:

as you say, there may not be much of a difference with the same product.

Resultat (engelska) 2:

as you say, it can not be that much difference with the same product.

Resultat (engelska) 3:

as you say, it can"t be that much difference, with the same being.