The EIA/TIA/RoHS compliant, stand-alone floor rack shall be Lowell Model No. LER-2422. Overall measurements shall be 48.125"H x 22"D x 23.06"W with panel space of 24 rack units. Load capacity shall be 800 lbs. The rack shall include a recessed rear door with vents and key lock, welded side panels with vents, steel top with vents, open base with grounding stud, one pair adjustable front mounting rails with printed RU increments, combination knockouts above and below rear door, and provisions to mount an optional surface-mount front door or rear rails (ordered separately). The rack shall be manufactured in the U.S.A. with certified U.S. steel and have a black wrinkle powder epoxy finish. It shall be UL Listed to UL2416.