Deliciously refreshing and lightly alcoholic sparkling water, Percival and Co.'s Elderflower Hard Tonic is light on alcohol and low in calories.  Inspired by handpicked ingredients from Oxfordshire's hedgerows, these botanical infusions are elegant and sophisticated. Made with fermented apple wine, sparkling water and infused with natural elderflower, these naturally flavoured drinks are ready to be enjoyed on their own, simply poured over ice.