Based on this product's specifications, here are some alternatives and similar models
Plumbing fitting DANFOSS 013G0016 — 1 piece, plumbing connector
Summary description:
DANFOSS 013G0016 is a single-piece plumbing fitting supplied as 1 pc per pack. This DANFOSS connector is intended for use in plumbing and heating installations to join pipes or components. Suitable for replacement or new installations where a compatible Danfoss fitting is required. Check compatibility with system dimensions and materials before installation.