BKF 34-0.5/18.375/NPT BKF 34-0.5/M18 BKF 34-0.5/M20 BKF 34-1.5/14.5/NPT BKF 34-1/14.5/NPT BKF 34-1/14.5/NPT/S717 BKF 34-1/18.375/NPT BKF 34-1/M18 BKF 34-1/M20 BKF 34-2/14.5/NPT