Description How Pre-filled Exchange Water Works Step 1 – Purchase your first 19L bottle of Jantzen either through our package or ale carte section. Step 2 – Drink it down, our 19L bottles work with most water dispensers. Step 3 – Exchange pre-filled water bottle with us. Select how many empty bottles you have and we will exchange one on one with you. The Jantzen 19L Water Bottle offers a convenient way to enjoy great-tasting water from Jantzen. The BPA-free water bottle is durable and reusable, allowing for many washes and refills and it fits most water coolers and water dispensers. Product Information – BPA-free water bottle is durable and reusable – Fits most water coolers and water dispensers Remark: Minimum order quantity of four (4) bottles per delivery for replenishment.