Fittings with 24° taper / O-ring (DKO): Straight male stud fittings, straight fittings, reducers and reducers for tube ends, adjustable elbows (90° and 45°), adjustable branch tees and adjustable barrel tees in various sizes and versions in the Extra-Light, Light and Heavy Series Series as per ISO 8434-1 / DIN 2353. Tube connectors and cutting ring fittings from the STAUFF Connect series made of steel with 24° internal taper. For hydraulics.