(Chem Tech LTD) Prozap DustR contains 3% Rabon. Use on beef and dairy cattle to control horn flies and lice and aid in the control of face flies; on swine to control lice; and on poultry to control mites, lice, and darkling beetles. Prozap DustR is a ready-to-use insecticide dust which can be used in self-treating dust bags or applied by hand. 3% Rabon. Contains 2 x 12.5 lb. refill cartridges.