API seamless tubing pup joint (1)Standard: API 5CT (2)Size: 2 3/8"- ... /8" (3)Grade: J55,K55,L80,N80.P110 pup joint(1)Standard: API 5CT(2)Size: 2 3/8"-13 ... also used to adjust the depth of downhole tools. Pup Joint sets are available in: Integral Premium Thread Box-by- ... Pin with couplings hand tight Pin-by-Coupling Box Flush joint connections Quality is our main competitive advantageā¢ The requirements and ...