The Genesis Series offers a high quality R.O. system at unbeatable prices. NSF listed filter cartridges and tanks on all systems. The Genesis Series uses the highest quality components and follows strict TQM procedures for customer satisfaction. All units are water tested to ensure that the membrane is rejecting properly, and that the autoshut-off and check valve function when pressurized. The water testing procedure makes sure that the units purchased don't leak, and are at the highest quality standards.