Designed for small applications in pharmaceutical, biotechnology, food/beverage, medical, chemical, and DI water. Available in a wide range of filtration media, and a broad spectrum of ratings. No adhesives, binders, or surfactants are used in the manufacturing process.  Single open end with 56 mm O.D, two types of connections: one with a single internal O-ring seal contained in the outlet end cap(that is the 116 inside type in the ordering information); the other one with a special flange that incorporates a special seal to eliminate fluid bypass from the upstream to the downstream side of the filter, the housing elastomeric O-ring is placed on a special flange, which is an integral part of the element outlet end cap.