Whether you need bulkheads, tees, unions, reducers, swivels, couplers, or elbows to complete your plumbing job, look no further than Fragola for the finest fittings and adapters available. To the people at Fragola, engineering has great value, and perfecting their hose ends and fittings is serious business. Fragola Performance Systems radius AN to O-ring adapters are manufactured from aerospace-quality aluminum to exacting standards for tight, leak-free connections and then anodized for added durability. These American-made radius AN to O-ring adapters are available in varying sizes to fit nearly any application. Plumb with precision fittings from Fragola Performance Systems.