P-RKF 30-026-5/14.5/NPT P-RKF 30D-0.2/14.5/NPT P-RKF 30D-0.3 P-RKF 30D-0.3/14.5/NPT P-RKF 30D-0.3/14.75/NPT P-RKF 30D-0.5/14.5/NPT P-RKF 30D-0.5/14.75/NPT P-RKF 30D-0.5/M20 P-RKF 30D-1 P-RKF 30D-1/14.5/NPT