BKFV 14-14-0.5/M18 BKFV 14-14-0.5/M20 BKFV 14-14-1/M20 BKFV 19-19-0.5/14.5/NPT BKFV 19-19-0.5/18.375/NPT BKFV 19-19-0.5/M18 BKFV 19-19-0.5/M20 BKFV 19-19-1/14.5/NPT BKFV 19-19-1/18.375/NPT BKFV 19-19-10/14.5/NPT/S717