Based on this product's specifications, here are some alternatives and similar models
Baks elbow cover 90° 50 mm, 1 mm thickness PKKJ50 (102405)
Summary description:
Baks PKKJ50 elbow cover is a 90-degree component designed for 50 mm piping with 1 mm material thickness. It serves as a protective and finishing cover for elbow joints, providing a neat connection point and shielding the joint from dust and mechanical contact. Suitable for plumbing, ventilation or cable routing installations requiring a fitted elbow cover.