BKF 44-2/14.5/NPT BKF 44-10/14.5/NPT BKF 44-1/M20 BKF 44-1/M18 BKF 44-1/14.5/NPT/S717 BKF 44-1/14.5/NPT BKF 44-1.5/14.5/NPT BKF 44-0.5/M20 BKF 44-0.5/M18 BKF 44-0.5/18.375/NPT