API SL315 Drilling Water Swivel, High Pressure Rotary Fluid Passage Assembly. API Certified Compliance: Conforms to API Spec. 8C PSL 1 and API monogram standards. Quick Exchange Assembly: Cassette structure allows quick exchange without disassembling rotary hose. Low Temperature Resistance: Available according tospecific customer requirements. Standard Thread Compliance: Threads comply with API Spec. 5B for gooseneck joints. Wire Line Logging Outlet: Gooseneck includes a dedicated outlet for wire line logging. Flexible Thread Matching: Compatible with 3LP and 4LP internal or external thread hose connections. High Quality Assurance: All equipment is API certified and tested before delivery.