Fits 4" Ball Valve w/ (4) 11/16" Bolt Holes on 9" Bolt Circle, 316 SS Flange, Nylon Kammed Cap, Black EPDM Gaskets, SS Straight Arms, Nylon Plug, SS Cable.v Flange AAR Approval # E-232133, Cap AAR Approval# E-232131. Not Approved for DOT Stenciled Cars