Based on this product's specifications, here are some alternatives and similar models
T-piece Antari FTA-664 for fluid lines, 2×6 mm and 1×4 mm connections
Summary description:
Antari FTA-664 T-piece is a connector for fluid or tubing systems with two 6 mm outlets and one 4 mm outlet. Designed for use with compatible Antari equipment and tubing, it enables splitting or joining fluid/air lines in fog or fluid distribution setups. Suitable for installation in professional AV, stage or effects systems where these tube diameters are used.