25 GPM 30 micron rating 1" flow 1.5" û 16 UNF Mounting Thread Maximum operating pressure 50 PSID PetroClear 40530P-AD cellulose filters are particulate removing spin-on filters designed to remove particulate from neat gasoline, Ethanol blended gasolines, diesels, Biodiesel, ULSD (Ultra Low Sulfur Diesel), kerosene and fuel oils. These filters are designed for particulate removal only and WILL NOT REACT TO WATER IN FUELS OR PHASE SEPARATION IN ETHANOL BLENDED GASOLINE TO SLOW FLOW. Collapse Pressure: 150 psi. Diameter: 3.75 inches. Type: spin-on filters. Pack of 12 filters.