Based on this product's specifications, here are some alternatives and similar models
Plumbing fitting DANFOSS 013G0037 — thermostatic radiator valve component, 1 pc
Summary description:
DANFOSS 013G0037 is a single-piece plumbing fitting designed as a component for thermostatic radiator valve applications. Supplied as 1 pc per pack, it serves for connection and replacement within heating systems where DANFOSS thermostatic valve parts are required. Use for maintenance or repair of radiators and HVAC installations compatible with the specified DANFOSS model.