Based on this product's specifications, here are some alternatives and similar models
WAVIN Tigris M5 vkl. 20 mm 90° elbow (model 10200827)
Summary description:
WAVIN Tigris M5 vkl. 20 mm 90° elbow, model 10200827, is a plastic pipe fitting designed for 20 mm tubing to create a right-angle (90°) connection. Intended for water distribution and plumbing systems, it provides a compact directional change in piping runs. Suitable for residential and light commercial installations where reliable, space-saving elbow fittings are required.