Vulcan-Hart VFR122D Backguard Flue Riser

Reinforced Riser, for standard or convection ovens (if mounting a 36" cheesemelter or either of the salamanders on a back riser above the heavy duty range, you must add this)

double-deck flow-thru hi-shelf, non-overlapping, 12"

Stub Riser, 4", non-overlapping, 36"