We carry an assortment of clear plastic bottles from 2 oz up to 4 L (1 gallon) in size. The 2, 4, and 8 oz containers come with black flip top caps and the 1L and 4L with screw caps, no spout. Note that the 4L container is square in shape. We encourage sterilizing and reusing containers as much as possible and will provide up to 10% off on subsequent orders if containers are returned clean, sterilized and not damaged or marked up.