Yes! The manufacturer claims that this product is lactose free.

Is Schweppes Zero Sugar Sparkling Mineral Water Strawberry & Watermelon 375mL x 10 pack Lactose Free?

Yes! The manufacturer claims that this product is lactose free.
Lactose Free? Schweppes Zero Sugar Sparkling Mineral Water Strawberry & Watermelon 375mL x 10 pack | Spoonful