Casing Coupling, N80, API 5CT, 5-1/2 Inch BC
Straight Coupling, NPT, 3000LB, 3/4 Inch
ASTM A105 Coupling, PN400, DN65, Threaded NPT
ASME B16.11 Coupling, ASTM A105, PN400, DN25
A182 F304 Half Coupling, DN25