Practical Drum Supply for Water Treatment BWF160 Defoamer in 25 kg and 200 kg Plastic Drums BWF160 is a nonionic silicone defoamer supplied in 25 kg or 200 kg plastic drums for qualification trials and routine water-treatment use. Product ModelBWF160 Ionic CharacterNonionic pH6-8 Reference Dosage50-300 ppm Application Overview Packaging must match trial, routine-use and site-handling requirements while keeping the liquid protected during storage. BWF160 is available in 25 kg