We used to spend a bundle ordering these from label printing companies. The Weatherproof Polyester adheres very well to the plastic bottle and works well in our laser printer. A box of 750 labels lasts us about a year - this is a low volume product for us, and if we need to change the label it is very easy.
Use the multipurpose tray and the left side output selection. Print only one sheet to be sure you have everything right before printing multiples. I use InDesign and Bar Code Pro software on a Mac, but you can do all this in Maestro Label Designer if you don't have the budget.