Fits 4" Ball Valve w/ (4) 3/4" Bolt Holes on 9" Bolt Circle, 316 SS Flange, Nylon Kammed Cap, Black Nitrile Gasket, SS Straight Arms, Nylon Plug, SS Cable, Cap AAR Approval # E-232131, Flange AAR Approval # E-232133. Not Approved for DOT Stenciled Cars