Designed to be used with IMC (Intermediate Metal Conduit) and rigid conduit, this Rigid Chase Conduit Nipple is ideal for connecting boxes or housing through knockouts. It can also be used with locknuts (sold separately) to create short raceways between boxes and enclosures. Made from a high-strength die-cast zinc alloy, this chase nipple is corrosion-resistant and can be used both indoors and outdoors.