World-class Vacuum Trucks and MORE! 

FlowMark builds world-class vacuum trucks: septic service trucks, grease trap service trucks, car wash pit service trucks, portable restroom service trucks, and more. But did you know that we do much more than vacuum trucks? FlowMark belongs to a family of brands dedicated to building high-quality vacuum trucks, aircraft refueling equipment, high-rail equipment, and vacuum and fuel tanks. 


Check out our family of brands below: 


FlowMark Vacuum Trucks 

World-class vacuum trucks for septic service, grease trap service, car wash pit service, and portable restroom service. 


SkyMark Refuelers 

A full range of world-class aircraft refuelers and fuel storage systems. 


KC Tank 

World-class stainless steel and aluminum vacuum tanks and aircraft refueling tanks. 


RailMark Trucks 

A full line of high-rail equipment from grappler trucks to DTL refuelers. 


The Truck Program 

Serving body builders across the nation with proper spec chassis for upfit.