Channel 423A3 Double Cafeteria Tray RackThe Channel 423A3 is intended for cafeteria use. With a heavy duty high tensile extruded aluminum construction, the double tray rack is perfect for walk in cooler or freezer applications. Its designed with 1 x 1 1 2 extruded aluminum angle heli arc slides which are welded to the frame. The frames are 1 1 74 extruded aluminum tubing. This creates a durable product. So durable Channel offers a lifetime guarantee against corrosion and rust. The 423A3