The Water Manifold 2 inch x 3/4 inch Skt (4PT) is commonly used with 2 inch rigid pipe and 2 inch flexible rigid pipe.
Best to use a plumbing cleaner then pipe cement to assemble. Pipework pushes inside this part at the female end and at the male end it pushes in to a female socket.
Used when the piping for the water jets is supplied in 3/4 inch flexible hose. You would glue the 3/4 inch flexible hose inside the fitting.
Internal Diameter: 70 mm
Outer Length: 147 mm
Depth: 100 mm
2 inch S x 2 inch Spg x 3/4 inch (4) S