Special treatment for use with oxygen - OX >> More... |  Special treatment silicone-free - SI >> More... |  Special cleaning degreased unlubricated - US >> More... |  Pre-coated threads with Loctite 5061 - CT >> More... |  Pre-coated threads with PTFE-tape - CP >> More... |  Chemical brass nickel plating - CV >> More... |  Engineering >> More... |  Special designed products >> More... |  Pre assembled kits >> More... |  Ready-to-fit >> More... |