Van Ness Odor Control Extra Giant Enclosed Cat Pan with Odor Door - #CP7 Provides class leading odor control by enclosing litter and providing the added benefits of an odor door & replaceable Zeolite air filter Eliminates litter scatter Ideal for multiple cat households or households with large cats High polished finish that is odor & stain resistant & easy to clean,#CP7; 21.5" x 17.5" x 18". The top and bottom are secured with a plastic tie. All the customer needs to do is cut the plastic tie off and undue the four clips on the sides of the pan and the bottom will fall out NOTE: The bottom is inverted and placed up into the top for shipping purposes