With large experience in the Natural Gas market since begining of its activities GASCAT has a line of valves, filters and Skids, with models class 150# up to 900#, that assist since transmission systems up to stage of final application inside the industrial process for low pressure. The options of supply include stations assembled in Skids, in cabinets / boxes or inside boxes for buried installation largely used in urban regions where the citzen circulation allows a safety equipment and with device proper to avoid violation. The cartridge line filter is supplied with quick open closure, resulting in less time for maintenance, beyiond to be an easy way to access the elements for replacement.