The AllPoints Foodservice Parts & Supplies 221328 is a high-quality electrical part designed for optimal performance in commercial kitchen equipment. This chrome burner valve knob features a 2-3/8" diameter with a black marking for easy visibility and precise control. It has a flat down design with a 7/16" protrusion and a mounting size of .24". The knob comes equipped with a 4-way insert for versatile installation. For those requiring a red striped knob, the compatible part is #22-1273. This knob is suitable for use with the Jade Broiler Series (JSB) and Range Series (JTRH), ensuring compatibility with a range of kitchen appliances.