The Enduraplas REU100S09S is a 100-gallon portable transfer tank for moving diesel exhaust fluid (DEF) around the jobsite, the shop, or the back of a service truck. It stands 34 inches tall on a 34 by 40 inch footprint, so it drops onto a truck bed, trailer deck, or skid without eating your whole load space. Filled with water it carries about 834 pounds, and that full-weight number is the one to plan your mounting, tie-downs, and lifting around before the tank ever leaves the ground.
Will it work for your transfer job?
The tank measures 40 inches long, 34 inches wide, and 34 inches tall, verified against the launch spec rather than guessed from the name. At roughly 8.34 pounds per gallon of water, 100 gallons puts you near 834 pounds brimful, which is why the footprint and mounting surface matter as much as the gallon count. One caution specific to this tank: DEF is denser than water, so a full DEF load weighs more than the 834-pound water figure. Confirm the tank's specific-gravity rating with the manufacturer before you load DEF, and confirm the dimensions against your bed rails or pad opening. If you are sizing transfer volume against pump rate and refill cycle, the Tank Sizing Calculator and Tank Sizing Guide walk you through it.
The mistake to avoid
A portable transfer tank rides loaded, so the failure point is almost never the tank wall — it is the tie-down and the surface under it. At 834 pounds full of water (and more with DEF), an unsecured tank becomes a moving load the moment the truck does, and a flat, fully supported base is what keeps the shell from flexing against a bed rail. Mount it on a continuous surface, strap it for the full filled weight, and never assume a partial fill is safe to leave loose. For DEF specifically, keep the tank dedicated to DEF service and confirm the port fittings and gasket materials against the Enduraplas spec sheet before first fill — cross-contamination from other fluids is the quickest way to ruin a DEF load.
Freight and next step
This portable DEF transfer tank ships by LTL freight, palletized, and freight is quoted separately to your ZIP — never bundled into the list price. Get a live number with the Freight Cost Estimator, or call 866-418-1777 and we will work out the transport and confirm fit for your DEF transfer setup before you order.
