Based on this product's specifications, here are some alternatives and similar models
PE connector Arangül 40 x 1 1/4M for polyethylene pipe connections
Summary description:
PE connector Arangül 40 x 1 1/4M is a polyethylene pipe fitting designed for reliable connections between PE pipes and threaded 1 1/4" male fittings. Suitable for water supply and irrigation systems, it provides a secure mechanical joint for durable, leak-resistant operation. Easy to install for professional and DIY plumbing tasks.