Intex Pool Cap to connect to the pipes to intex pump and pool. Had some issues getting the threading right so used the “iso pipe threads” standard. It seems to fit pretty well. Also made a pipe connector to glue inside standard PVC pipes at 50mm that is shown on the pictures and also uploaded. 

Thought the original caps were hard to screw on and off, so made a better grip on these caps and made a tool that can be used on these caps as well, that will be uploaded as soon as I get to print and take some pictures of it.

Update-------

Made the tool for the caps:

Tool for Caps for Intex pools by RobbRayo MakerWorld: Download Free 3D Models