ACDelco A50N18LA2 Specialty Conventional Powersports JIS 50N-18L-A3 Battery Formulated for durability and performance Convenient acid bottle for the correct amount of acid for the battery, no left over acid to be disposed This battery is shipped dry and unfilled which gives the product a very long shelf life Removable vent caps which allow for easy service Exhaust vent tube relieves excess gas pressure and fumes safely