I made a return fitting for the end of a heater on my small pool. There is virtually no water pressure as this part is only a hook fitting that dumps into the pool.When the pump is on, water droplets form on the outside of the pipe around the bend at a steady pace and drip from this elbow connector.The part is 2 shells, 4 top and bottom, .25 layer, 55%, printed @ 245c. The wall is 2.6 mm.At least my fitting isn’t watertight. http://ift.tt/2aXlVTg