Sold as one unit. (1 unit = 10 each.) Used with brass, copper and iron pipe. For low and medium pressure lines. -65 to +250 degrees F. Yellow or red brass as listed. Red brass for corrosive soils and high salt areas. Bulk. 1/2" x2-1/2"Red . Manufacturer number: AB113RB-D25. SKU #: 46993. Country of origin: China. Distributed by Anderson Fittings.