You will need two rubber pipe to pipe fittings,one piece of 3'' dia acrylic,one piece of 2'',(length will depend on pump size and volume of aquarium)a inch and 1/4 slip joint(for water height adjustment)1/2'' inside dia.Pvc,some 1and1/4'' sonna tube,1 inch and1/4slipto thread fitting,1 elbow...