We are proud to offer the NINJA line of high-pressure air bottles and air equipment. All NINJA products are made in the USA and feature dual o-ring regulators for additional leak protection at the ASA. NINJA regulators are also rebuildable so if they do develop a leak, your department armorer can make them like new again instead of having to replace the entire air bottle. See the Regulator Rebuild Kit page to view a video that shows how easy it is to rebuild the regulator on these bottles. All NINJA products fully comply with DOT standards and regulations.