5 gallon bottle cap for 5 gallon bottles non-spill, one time using,smart caps... 5 gallon bottle cap ,non spill cap .water ... series available7. Any colour is available8. 5 gallon water bottle caps ,include cap ,inner plug,can ... water (mineral water,distilled water, pure water, spring water, magnetized water etc drinking water) packaging use. 8. The inner cap opens smoothly an securely when the bottle ...