Gas RangeTop New Dual Stacked Burners-1-20,000,2-18,000,2- 15,000 And 1-9,200 With Melt feature Sealed,ISLAND TRIM INCLUDED,Optional backguards- 5" SS 808523,10" SS 808524,20" SS With Shelf 808525,RED KNOBS INCLUDED,ONE ADDITIONAL SET OF NO CHARGE KNOBS CAN BE ORDERED- BLACK 820495,SS 820491, All 4 burners super,all 4 burners simmer.6-Burners, FACTORY LP,FOR NAT GAS ORDER SRT366,