Advance Tabco Challenger Series NSF Service Unit Closed Glass Rack - Flat Top, 2 Feet -- 1 each.24" closed glass rack cabinet. This model is avalible with a flat top or a corrugated top with a drain. Enclosed stainless steel glass storage cabinet with adjustable rack slides. Glass racks not included. The enclosed glass rack units will hold three 20" x 20" x 5 1/2" racks. The enclosed glass rack units have either a flat top or a corrugated top with a 1" drain in the center. The open glass rack unit will hold four 20" x 20" x 5 1/2" racks. Stainless steel legs and 4"H backsplash. All units can be used with Slimline or Challnger Series Underbar equipment.