The Frigidaire FAD504DUD is basically, a smaller capacity of their extremely popular FAD704DUD model. It's very similar to its predecessor. The only major difference is that this one is capable of extracting 50 pints of water a day as opposed to the 70 pints/day capacity of the 704DUD.
FAD504DUD design and size are similar to FAD704DUD with 17.75" x 15.17" x 25" dimensions but it's 5 pounds lighter. It has very similar features including a washable antibacterial filter, the auto shut off and multiple fan speeds. Digital controls allow for easy operation and you can use a normal garden hose to allow continuous drainage.