Odin Concentrate is the original NGP product developed in 2011. Certified for flushing fresh water systems. Removes bio-film, bacteria, salts, humus and other deposits from the pipelines. Concentrated formula, dilutable with water. Recommended concentrations can be found on product data sheet. Odin Concentrate will kill 99.9% of the bacteria and efficiently remove any legionella and bio-film. HOCNF certified, non-toxic and non-flammable.