Evening.
Does anyone know what these pipe fittings are called?
The JG push fit for 4mm fuel pipe (diesel)
Just looking for the correct name so I can search for a T piece.
Thanks.
Try "4mm push-in tee". They are normally known as push-in fittings and are widely used in pneumatic systems. They are sized on the OD of the tubing, so 4mm is pretty small. If it's 4mm bore tubing, 6mm OD, 4mm ID is pretty common (often known as 6/4) and you'd want a "6mm push-in tee"