Weight 3 LBS , 8R EUE (8 means 8 threads per inch, EUE stands for external upset ends. This EUE description refers to tubing used in oil&gas wells where the ends of the tubing are heated and expanded to a diameter of 2 3/8'' on nominal 2'' tubing and 2 7/8'' on 2 1/2'' tubing, etc. The internal diameter of the tubing is held constant. Thus for 2'' nominal EUE tubing the outside diameter is 2 3/8'' and it has an 8R thread. All is API standard).