FSR PWB-320XL 4 in Extra Large Open Style Wall Box

The PWB-320XL is the biggest of FSR's open style project wall boxes at 4 in deep, meant for the position where a whole shelf of equipment has to disappear into the wall behind a display. It is sold as an open box, so the parts that finish it are ordered against the job rather than bundled.

The -Bx is the back box on its own. The -TrK kit pairs the full size box with the finished trim ring and is the usual starting point. Add the -Tr trim ring or the -Cv decorative cover to close the opening, and the -SMK triple shelf kit when the box has to hold three tiers of hardware on its own shelves and side brackets.