NIF-Series nipple inline filter is compact, light weight and inexpensive to install at the point of use. Common usages are filtration for air, oil and water. Unit Construction features a unique conical shaped porous sintered bronze filter element in a brass nipple fitting. Conical filter provides larger filtering surface and uninterrupted axial flow than typical disc filter. The porous sintered bronze element is available in 40 or 90 microns; element can not be replaced and must be disposed upon end of its service life.