Based on this product's specifications, here are some alternatives and similar models
No name Trójnik 40/40/90 pipe fitting T-joint 40/40/90
Summary description:
Trójnik 40/40/90 by No name is a T-shaped pipe fitting with three 40 mm outlets and a 90° branch angle. Intended for joining or redirecting fluid or air flow in plumbing, ventilation or drainage systems. Use for connecting three pipes of the same 40 mm diameter where a right-angle branch is required. Suitable for installation in residential and light commercial systems.