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