Fragola Aluminum A-N Adapters and Fittings may look like simpledevices, but Fragola takes them very seriously. They have spentseveral years researching, testing, and retesting to perfect whatthey feel are the finest adapters and fittings available.Finish PlainMaterial AluminumSize -6 A-N x M18 x 1.5Item ID FRA4919FI-0618-PLN