The same as this — used to indicate that something is identical to the item just shown or mentioned.
このシャツ、これと同じ色のサイズはありますか？
Does this shirt come in the same color and a different size?
写真を見せて、これと同じものをくださいと言った。
I showed the photo and asked for the same one as this.
結果はこれと同じになるだろう。
The result will probably be the same as this.