Based on this product's specifications, here are some alternatives and similar models
Thermostatic valve insert DANFOSS AVTB20 with union connection, 3/4" female thread, sensor Ø9.5×155 mm, adjustable 30–100°C, kvs 3.4
Summary description:
Thermostatic valve insert DANFOSS AVTB20 designed for hydraulic balancing and temperature control in heating systems. Features a union (muff) connection with 3/4" female thread, capillary sensor Ø9.5×155 mm and adjustable setpoint range 30–100°C. Flow characteristic kvs 3.4 ensures defined flow for radiator or convector applications. Suitable for replacement or new installations.