Vented Shelf,48 In. W x 24 In. D, For Use With Grainger Item Number 1PW5, 1PWY1, 1PWY3, 1PXA1, 2KUW1, 2KUW2, For Use With Mfr. Model Number A4824A, A4824B, D4824, K4824A, K4824B, S4824A, S4824B, S4824x3, S4824x4, W4824, Fits Brand Dunnage-Rack, DuraShelf