The QKS #2 (1.0 Style) Aluminum Paint Cup Adapter for the disposable Quik Kup System is also compatible with the 1.0 3M™ PPS™ disposable cup systems.
This female adapter will fit most conventional spray guns including all ATOM X20, X21, X88, and X27 spray gun models.
This adapter will allow you to convert your spray gun to use the "QKS Jobber Pack" or 3M™ PPS™ cup kits. “3M and PPS are trademarks of 3M Company.”
If you would like to purchase the new plastic version adapter, check it out here.
The benefit of the plastic version is that it will not harm your spray gun thread, and could allow for a better seal on your gun.
It is recommended to use plumbers tape when screwing this to your spray gun for proper sealing.