I have a couple of aluminum reducer tees that I had custom made for me but didn't end up using. They're perfect for joining coolant or intake pipes. The main diameter is for a 38mm ID pipe and the tee-off is 15mm. 15mm Tee is barbed and the 38mm ends are swaged to help stop the pipes blowing off

Both are 100mm long

£12 each delivered or £20 for the pair







[Edited on 12/12/18 by StuP]