This is a u-joint conenctor for ¾" Sched 40 PVC pipe. The model has normal support that can be a pain to remove. but gives a cleaner print. Switch it to tree supports if you like. Not all PVC pipe is created equally, so this could be either a little tight or a little loose depending on your specific brand. I've even experienced that within the same brand. You could try scaling it, but the print in place joint may become too tight if you shrink it.

My other PVC projects and models can be found here:

[https://makerworld.com/en/collections/2752844](https://makerworld.com/en/collections/2752844)

And check out my full collection of hardware models here:   

[https://makerworld.com/en/collections/3121074](https://makerworld.com/en/collections/3121074)