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 P-RKF 30D-1/M20 P-RKF 30D-2 P-RKF 321-0.3/14.5/NPT P-RKF 321-880-2/14.5/NPT P-RKF 33-187-0.5/14.5/NPT P-RKF 33-187-10/14.5/NPT