SturdiBox Extra-Large (2 gallon) 16"L x 12" W x 4" D inches (PURPLE) SturdiBox extra-large (2 gallon) The original: portable, foldable, washable, water-tight box Water/food box or litter box for pets Holds up to a two gallons of liquid Foldable, portable and lightweight Seamless and durable waterproof liner