Based on this product's specifications, here are some alternatives and similar models
Threaded Cap for Sealant Cartridges OTTO SIL-NKR — accessory for dispensing cartridges
Summary description:
Threaded cap for sealant/adhesive cartridges OTTO SIL-NKR (MPN: SIL-NKR). Designed as a replacement or accessory part for cartridge dispensing systems, it secures and guides nozzle or plunger interfaces on standard screw-fit cartridges. Suitable for use in construction and sealing applications where cartridge dispensing and controlled material flow are required.