Sold as 5 each. Yellow brass. 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. 1/2" Flare x 1/2" Flare. Manufacturer number: ABUS4-8. SKU #: 47212. Country of origin: (TBA). Distributed by Anderson Copper & Brass.