Based on this product's specifications, here are some alternatives and similar models
Fibre optic connector QOLTEC 54131 — QOLTEC model 54131
Summary description:
Fibre optic connector QOLTEC 54131 by QOLTEC. A passive optical connector designed to join or terminate optical fibres for signal transmission. Suitable for use in fibre optic cabling, patch panels and equipment terminations where a compatible connector type and polished end-face are required. Use for linking fibre runs in networking and telecom installations.