Deli cups water dishes, pvc pipes and silicone...questions ;)

[CALM Pythons]

Ok, I'm not sure "how" I measured the deli cups earlier, but they are actually a bit LESS then 4 inch across the bottom. So I'm getting the 4 inch PVC couplers tomorrow, and then I will fix up the new tubs, let the silicone cure, and move the snakes into the clean, new and improved tubs

Then I can deep clean and scrub the old tubs and keep them as spares..

I'm looking forward NOT to have all that soaked aspen from spilled water in freshly cleaned tubs

Well a 4" coupler is a millimeter bigger so that it slides over a 4" PVC (outside Diameter) pipe..so the 4" coupler should be 100% perfect for you