By loosening threaded collar on filter housing, which is constructed of opaque nylon material with 3/8 in. beaded barb, inline filters can be inspected and cleaned without disturbing tubing connections. Available with 3 micron ratings and optional color-coded threaded collars to identify them, filters include 65 µ white nylon element, 149 µ red nylon element, and 250 µ green nylon element. Special end configurations are also available.