Clippard air tank caps?

Do clippard or any other vendors sell caps for the clippard air tanks? If yes, where can I buy them(had a hard time finding it on their official website)? Or maybe a 3d print file? Thanks!

What exactly do you mean by caps?
Do you mean pneumatic plugs to plug one end of the tank? If so, just search 1/4 Pneumatic Push Connect Plug. You cannot 3D print these as all pneumatic components need to have a pressure rating.