5 gallon water cooler caps (RK-Z7) 100% PE new materials,blue and white Could ... with heat sticker and foam 1. 5 gallon water bottle caps ,include cap ,inner plug with buckle ,can print LOG ,use ... . 5.we also supply other different kinds of 5 gallon caps, three-in-one, two-in-one, four-in-one, recycle ...