"Sold as one unit. (1 unit = each.) 32"" lead. PG-9 brass adapter sheath included, for ITT General. 750 millivolt. Fits Gem-line, ITT General, Whiterodgers, Honeywell, and Jade Control. Universal replacement cartridge. Carded. Manufacturer number: 3101 ACE. SKU #: 44411. Country of origin: Mexico. Distributed by White Rodgers."