Professional Performance for Public Safety and Technical Diving The Poseidon Xstream Deep Scuba Regulator is the benchmark for high-performance diving regulators. Whether diving with air, trimix, or oxygen, the Xstream Deep delivers exceptional breathing performance in the world's most demanding environments. Certified to 200 m (656 ft), it was the first regulator to achieve this depth certification. The preferred choice of the U.S. Navy, U.S. Coast Guard, NYPD, US Water Rescue Dive Team, and other professional organizations, it is trusted by technical, commercial, military, public safety, and ice divers worldwide. KEY PERFORMANCE FEATURES Side purge prevents current-induced free flow Side vent diverts bubbles from face EAN 40 ready and compatible Works perfectly either way up, or from left or right side Only regulator certified for 200 m / 656 ft No environmental sealing required for cold water Weight: 1100g US Water Rescue Dive Team approved for Public Safety Diving Technical Specs: Air: Yes Anti-Freeze protection: Yes (TDA) Approved to depth (m/f): 200/656 (gas depth) Automatic Inhalation Control: Yes Automatic Venturi Assist: Yes CE Cold water approved +4C: Yes EN250:2014 approved: Yes EN738-1 Oxygen approved: No IP (bar/psi): 8,5/123 Nitrox EAN 40%: Yes NORSOK Tested: Yes O-rings: EPDM Oxygen 99,95 %: No Trimix: Yes US Navy Tested: Yes Working pressure: 300 bar