Comparison : Item # QRA-12-1, Reaction Flask, Cylindrical, Jacketed, Glass
Item # QRA-12-2, Reaction Flask, Cylindrical, Jacketed, Glass
Item # QRA-12-3, Reaction Flask, Cylindrical, Jacketed, Glass
Item # QRA-12-4, Reaction Flask, Cylindrical, Jacketed, Glass
Item # QRA-12-5, Reaction Flask, Cylindrical, Jacketed, Glass