Streamline W-68005 Wrot Copper Union, C x C, 1"Streamline wrot copper union is used in residential and commercial systems such as potable water, air conditioning and refrigeration. The union features solder cups. These fittings are used to allow repair to the line without damage. Size: 1" Connection Type: Copper x Copper Cast copper nut and thread piece Wrot tailpiece Used with types L and M hard temper copper tubing Used above ground for water supply piping Allows for disassembly without cutting