Sold as one unit. (1 unit = 10 each.) Yellow brass. 3/8" Flare. Can be assembled and re-assembled, resists mechanical pull out. Compatible with copper, brass aluminum and steel hydraulic tubing. Used on low, medium and high pressure lines. -65 to +250 Deg. F. Bagged . Manufacturer number: ABNS4-6. SKU #: 41156. Country of origin: (TBA). Distributed by Anderson Fittings.