... -1/2",from4-1/2"to13-3/8" Product Name: Tubing Pup JointS (pipe fitting pup joint, ... pipe fitting)Standard Reference: API spec 5CTSize: From 2 3/8" ... to 4-1/2''Grade: J55, K55, N80-1, N80-Q, L80, P110 N80Type: NU, EUThread Type: Tubing ... yearOtherwise, Our company manufactures and sells casing and tubing couplings,pup joints, tool joints, adapter pup-joints ...