Made by Waterway
This part comes in 3 pieces (4 if you include the seal), a male threaded union with a 4.7cm wide thread, female tail piece and a union to connect them together.
Please note this is not a standard 1.5" union our socket, the thread is different, however it will fit onto a Marlow ITT J250 pump wet end
The double threaded male part of this socket can be used for many other solutions on its own, for example: when connected to Long Wall Suction it can be screwed into the front and used to connect air into a wooden hot tub.
Comes complete with the seal.
Fits 1.5" Plumbing (See guide)
Thread width on male is 6cm
Thread (External) male end is 4.5cm
Width of female union is 4.8cm
Combined length is 9.6cm