Shelf Supports EP(4" W x 8" D x variable height) available in many heights (SS-12 EP is 12" high, SS-16 EP is 16" high, SS-18 EP is 18" high, SS-21 EP is 21" high, and SS-24 EP is 24" high) and are equipped with Electrical Power Kit EP-1 (other EP kits are available). These rigid supports are constructed of a heavy-gauge welded steel assembly, with easily removable side panels that provide easy access to wiring. Each Shelf Support (EP) has knockouts in the back and punch-outs in the top and bottom to allow for flexibility during installation. Finished in the same manner as the Base Cabinets – either one or two-tone combinations.