This knob is compatible with the knobs used on the front of the Camp Chef Flat Top Grill 600, which when turned controls the valve that lets the desired amount of gas to be fed through the designated burner for the ideal heat/flame you require. This knob may fit other models of Camp Chef Grills. Please refer to your user manual and double-check the dimensions shown on one of the images in this listing against the knob you are looking to replace. Dimensions: 1-1/2" High x 2-1/4" OD USA-Based Seller With 7 Days-a-Week Customer Support. This knobs is compatible with the knob used on the front of the Camp Chef Flat Top Grill 600, which when turned controls the valve that lets the desired amount of gas to be fed through the designated burner for the ideal heat/flame you require. This knob may fit other models of Camp Chef Grills. Please refer to your user manual and double-check the dimensions against what is shown in this part.