The lead-free wrought copper solder pressure fitting plug is used in residential and commercial systems such as potable water, air conditioning and refrigeration. The plug features a male solder end. The fitting provides a means of closing off or ending a portion of a line. It is designed to fit inside a solder cup. Please refer to Everbilt technical data sheets and catalogs for engineering and installation information. In addition to its inherent qualities of beauty, durability and low maintenance, copper's reusability makes it an ideal application in sustainable projects.