FlowMark Vacuum Trucks is the world-leading producer of the highest quality, fully engineered trucks. We have the nation's largest inventory of chassis tanks and ready-to-work vacuum trucks at our facility . Our engineers design each vacuum truck from scratch, giving us greater control over quality and details. Each FlowMark vacuum truck is fully engineered to work seamlessly with its operator, built to live a long and hard working life, and designed for easy serviceability.