How to find your Nexgrill model number
Or if you still have your User Manual, the model number should be on the front page and shown at the bottom of each page.
Also, Nexgrill produces grills for a lot of different brands including Kirland for Costco, Jennair for Lowes and Charmglow for Home Depot. Check your model number to see if it's a Nexgrill branded as another name.
Look for a number that starts with 7; like 720, 730, 740, etc. The most common models for Nexgrill start with those numbers.