Make and store extra carbonated water with this 1-liter bottle for use with your Aarke Sparkling Water Maker. It's made of BPA-free PET plastic that's nontoxic, strong, lightweight and recyclable with a stainless steel cap and bottom. Making your own soda water at home in this reusable bottle creates less waste-which is great for the environment-and means you won't have to carry heavy bottles home from the store. Carbonated water is a refreshing way to drink more water and makes a great mixer for cocktails. Add flavor after carbonation if desired.