3M® Micro-Klean™ RT Series filter cartridges feature an enhanced contaminant holding capacity for fewer filter change outs. Grooved cartridge with extended surface area promotes fuller utilization of the depth-matrix and promotes long filter life. Made without adhesives, binders, surfactants or lubricants for compatibility in a wide range of applications and operating conditions. Materials comply with regulations for food and beverage contact and for use in potable water applications. Has a coreless filter structure for ease of disposal via incineration or shredding. Includes a continuous integral length filter element.