Based on this product's specifications, here are some alternatives and similar models
Angle Flat Nozzle Steinel 110038670 — compatible replacement for heat gun accessories
Summary description:
Angle flat nozzle Steinel 110038670 is a compatible replacement accessory for Steinel heat guns. The nozzle directs hot air at an angle and concentrates the airflow into a flat profile for precise heating and stripping, making it useful for paint removal, shrink tubing, and localized heating tasks. Easy to attach and suitable for workshop and repair use.