Based on this product's specifications, here are some alternatives and similar models
Uponor press elbow 45° PPSU 40 mm - PPSU fitting for plastic pipe systems
Summary description:
Uponor 45° press elbow in PPSU material, designed for 40 mm plastic piping systems. This press-fit plumbing fitting provides a 45-degree change of direction and is compatible with Uponor press installation tools. Suitable for potable water and heating installations where durable, chemically resistant PPSU is required; used in residential and commercial water distribution and HVAC applications.