Based on this product's specifications, here are some alternatives and similar models
Reducing T-piece Unidelta PE fitting 32 mm x 5/4" x 32 mm, model 603633
Summary description:
Unidelta reducing T-piece (model 603633) is a PE pipe fitting with two 32 mm outlets and a central 5/4" (1¼") threaded or socket connection, designed to join and reduce pressure lines in polyethylene piping systems. Suitable for water distribution, irrigation and utility networks where a reduction and branch are required. Provides a compact connection for pipeline changes and branching.