5 gallon water cooler caps (RK-Z7) 100% PE new materials,blue and white Could ... print LOG,can use with heat sticker and foam 1. 5 gallon water bottle caps ,include cap ,inner plug with buckle ,can print LOG , ... of bottled water (mineral 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 ...