Couplings with copper plate  Grade P110
Size: Tubing coupling from 1.9"to 4-1/2", Casing coupling from 4-1/2"to 13-3/8".

Type: NU, EU (tubing coupling), STC, LC, BTC (casing coupling)

Grade: J55, K55, N80-1, N80-Q, L80, C95, P110