Patress

Patress Boxes (also called back boxes or pattress boxes) are the mounting enclosures behind switches, sockets, and other wiring accessories. They are surface-mounted onto the wall and provide a neat cavity for terminating cables and securing the faceplate. Available in single-gang and double-gang sizes, with different depths to accommodate the wiring space needed. Made from durable, flame-retardant PVC, they feature cable entry knockouts that can be broken out as needed. A fundamental component of every surface-wired electrical installation — you will need one behind every switch, socket, and cooker unit in the building.