API 5CT 10-3/4" OD 298.45mm * WT 21.5mm Coupling Stock

API 5CT 13-3/8" OD365.12mm * WT21.5mm K55 Coupling Stock

API 5CT 9-5/8" OD269.88mm * WT 21.38mm P110 Coupling Stock

API 5CT 2-7/8" OD94.00mm * WT13.00mm L80 Coupling Stock

API 5CT 9-5/8" OD269.88mm *21.38mm P110-CY Coupling Stock

API 5CT 2-3/8“ OD79.00mm * WT11.10mm L80 Coupling Stock