Part Number: 128-560013-0001 (Elbowfitting)Part Number: 221-4477-501 (Elbowfitting)Part Number: AP2121-16S (Elbowfitting)Part Number: AP2136-04G (Elbowfitting)Part Number: AP2136-06 (Elbowfitting)Part Number: AP2136-06G (Elbowfitting)Part Number: AP2136-08E (Elbowfitting)Part Number: S2473-40 (Elbowfitting)