hq4us 4legs dog litter box, pee pad holder foldable, indoor dog potty tray for puppy & large dogs, high walls, seamless, no assembly, waterproof, easy to clean, no spill,portable for travel x-large for dog? 38" length grey is up for auction in Pet Supplies. The current bid is $2.00, 96% below the $47.99 MSRP, in Good Condition. Bid on this item at our Florence - Industrial Road location before the auction closes.