1/2 Gallon Water Bottle for just $7.99!! This post may contain affiliate links or sponsored content. See Disclosure Policy. Amazon Here is a nice water bottle deal!! Grab this 1/2 Gallon Giotto Water Bottle for just $7.99 when you use the code 505BV19T at checkout. These have nice reviews too and come with a straw! This price is only working on Prime Members!