HUETER DLX DDOOLEY KD PLASTICThis is an easier way to keep your yard free from dog waste The Doggie Dooley installs into the groung and then operates like a septic tank by using bacteria action to liquefy pet waste for ground comsumption Digestive action works best at 40 degrees or aboveModel 3500has a pryramid shaped plastic tank with the capacity for 1 large or 2 small dogsModel 3800is the same as the 3500 with an added extension for up to 4 large dogs Both come with a footoperated lid 8 oz of digester and a free scoopOther products from PetCareRx