Comparison : Item # QRA-18-1, Reaction Flask, Cylindrical, Jacketed, Glass
Item # QRA-18-2, Reaction Flask, Cylindrical, Jacketed, Glass
Item # QRA-18-3, Reaction Flask, Cylindrical, Jacketed, Glass
Item # QRA-18-4, Reaction Flask, Cylindrical, Jacketed, Glass
Item # QRA-18-5, Reaction Flask, Cylindrical, Jacketed, Glass