“Cap For Grafit Bottle” is meant to use with this bottle print by Grafit: https://www.printables.com/model/125514-fallout-nuka-cola-bottle
My model is based on this one by Cmaddy: https://www.printables.com/model/49431-nuka-cola-caps
Print with a brim, 100% infill.
This has a built in support. Remove it with a pair of pliers by squeezing the slots on the bottom of the cap, and ripping off the support ribs.
The author remixed this model.
Adapted cap to fit Grafit bottle.