00% purified sparkling water. Reverse osmosis purified. Calorie & sodium free. Since 1949. The essence of Syfo's Original Seltzer is the purity of its water and its high effervescence. Scan the QR code with your smartphone for further information. Comments are welcome. Call toll free: 1.888.426.Syfo. www.syfobeverages.com. Please recycle. Made in USA.