Amazon has this 6-pack of Aquasana 18-oz. Glass Water Bottles for $18.9 after instant savings. Shipping is free for Prime members or with orders of $35 or more. These glass bottles are dishwasher safe and include BPA-free plastic lids. They previously sold for $39.99 and are selling for $29.99 at Aquasana. This deal is available for a limited time.