Modular auxilary storage tank to attach to existing tanks.   
22 gallons per tank.  Each tank comes with internal filtration and 12 foot self coiling suction hose to attach directly to the main tank pump.   Great for seasonal use when demand is high.  
Rubber Handles lock the tanks together. 
 
Note: these auxiliary tanks can also attach to the 26ANX or 50ANX tanks.  There just isn't a modular fastening sytem on those tanks.  The pumps are the same and it will work.
 
15lbs empty weight.  Measures 20" long x  15" high x 15" wide.