I just bought a shower head from Amazon (Chinese seller I think). As soon as I received it I removed the old one and tried fitting it in. But it cannot be screwed in. The diameter seem identical to the old one with my bare eyes. But the old one screws in easily and this one stops after one turn. I tried cleaning the threads with a toothpick, adding some WD40 and it does not get any easier. Do I need a connector? How universal are the connector widths?
I have added pictures.
ps: It is not easy to force as the disk part can spin 360 degrees around the connector, hence I have preferred not to force for now.
Link to the item I purchased if it helps: https://www.amazon.co.uk/gp/product/B07SSZ9RH7/
Best Answer
Your photo is not all that helpful but it appears that you are attempting to screw the new unit into a part off of the old one. You should remove that part that is sticking out from the disk and get to the standard plumbing stub that is coming out of the wall. That is where your new shower head should attach.
I have no idea what that circular plate is doing. Is it a part of the new one or the old one? Some better photos of what you received from Amazon might help here.