The 625 Series Feedback Hotdrop Nozzel creates Dual heater zones for unapparellelled head profile. You can easily download models to apply to your specific design. These ship within a day. We offer them in square coils as well as castin heaters. There are dozens of these. We have front load and rear load heaters as well. Check out the link below or call us at 1-800-626-6653!