Now you don't have to sacrifice the whole truck bed!   Our new 22 Gallon modular DEF tank with 12 volt high lift pump and Auto Shutoff Nozzle  takes care of the routine DEF top offs.  When you need more DEF during seasonally busy times you can simply strap on additional 22 gallon auxillary tanks.  This completely solves the problem of driving around with a little DEF in a huge empty tank taking up half the truck.   Fits in most truck service boxes and under standard tonneau covers in the bed.
Comes fully assembled with an internal 100 micron filter, 12 Volt ANX DEF high lift pump, Auto Shutoff Nozzle,  Keep Clean Nozzle Bag, 20' extended hose, 12' battery leads and waterproof switch.
 
Tank Dimensions 20" Long x 20" High  x 15 Wide. 
You will need more space above the tank to access the lid.   We reccomend 24" high available space for comfortable access.   
 
Pump, hose and nozzle must be run dry before freezing.  fluid can remain in the tank.