QKS #2 Style Aluminum Paint Cup Adapter for Disposable Quik Kup System. Also compatible with 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.
It will allow you to convert your spray gun to use the "QKS Jobber Pack" or 3M's PPS cup kits. This is not a 3M product*
If you would like to purchase the new plastic version, 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.