Channel STPR-33 Steam Table Pan RackWith a lifetime guarantee against rust and corrosion, the Channel STPR 33 is a heavy duty steam table pan rack. It is made of high tensile extruded type 6063 T5 alloy aluminum. It has vertical and horizontal frame sections extruded with extra thick 1 1 4 tubular walls. The casters are 5 and non marking. This prevents streaks from staining floors. This STPR 33 has three inches of space between each of the slides. This accommodates eighteen 12 x 20