The Cim-Tek 70068 dispenser filter removes particulates like dirt, dust and rust. For use with diesel, ggasoline, or ULSD, and Bio-diesel blends up to B20. 800HS-30-II Filter - 30 Micron - Hydrosorb. The 800 Series filters are designed for the high volume dispensers used in truck fueling. This series of filters fits the 805 and 810 adapters. 800 Series filters are available in particulate and hydrosorb and are rated at 40 gpm.