Update your semi truck with enhanced safety measures, with the Walter Kidde 4.5" Seamless Aluminum Fire Extinguisher that ensures you're Ready for the Road Ahead™. Due to its specialized design, this replacement extinguisher helps vehicles meet inspection requirements by offering a quick method to put out active fires. Constructed with a rugged and durable design to be suitable for emergency use. FleetPride is your First Click in Heavy Duty®.