F520 3-Door Stacking Cage Stacks easily on top of the Edemco F500 Double Drying Cage. This unit cannot be used in a Modular Cage Configuration. (One Unit - Not Three Separate Cages). Separate Cage into One, Two, or Three compartments by using the cage dividers. Stacks easily on top of the Edemco F500 Double Drying Cage (shown in photo above) F500 Double Drying Cage dries more dogs in less time. Will accommodate small to large dogs. Even a Remington, rockweiller or Shepard. Electrical engineers say that a groomer using conventional dryers for an average of 5 hours a day can save up to $800 a year in electrical bills alone by replacing them with Edemco's F500.The secret to the F500's energy-efficiency is the fact that it recirculates large volumes of warm air - saving energy by keeping the heat within the drying compartment. The F500's powerful motor moves an impressive 1,400 cubic feet of air per minute - enough to dry up to eight dogs an hour. And, since it uses moist, warm air - dogs stay comfortable (not to mention safer) while they dry. Includes a 60-minute automatic shut-off timer. And, as always, Edemco's safety features help keep your supervision time and labor costs to a minimum. Dry 1 large dog or use the divider and dry 2 smaller dogs at the same time. The dryer has several air vents so the air circulates evenly even if you do use the divider. No drain or plumbing.