The Mule Square Air Valve Knob is a practical and reliable product designed for various makes and models. Made of durable aluminum and treated with industrial hard chrome, this replacement knob ensures long-lasting performance. Each knob features the "Mule" inscription, adding a touch of style to your equipment. With its easy installation and compatibility with most models, this air valve knob is a convenient solution for any industrial setting. Trust the Mule Square Air Valve Knob for its durability, functionality, and compatibility.