... 11B, our sucker rod couplings include SM sucker rod coupling, T sucker rod coupling, Sub sucker rod coupling, Full Size sucker ... ", 7/8", 1"and 1-1/8" 1)Type: class T sucker rod coupling, class SM sucker rod coupling, sub sucker ... /8",1",1-1/8"11)Package: wooden case12)Payment: T/T If you are interested in any of our sucker rod ...