Our HD Oil Filters Feature a Cellulose/Poly Media w/ Contaminant Holding Capacity That Out Performs Many of Our Top Competitors w/ Contaminant Removal as Small as 8 Micron.; High Strength, Corrosion Resistant Metal and Superior Sealing Components Insure a Leak Resistant, Long Lasting, High Performing Oil Filter.; For Master Pack Version, Use # 1056MP; 19 Micron. Attributes Beta Ratio : 2/20=6/20 Filter O.D. (Inches) : 2.921" Flow Rate : 7 To 9 gpm Gasket I.D. (Inches) : 2.43" Gasket O.D. (Inches) : 2.734" Gasket Thickness (Inches) : .226" Height (Inches) : 2.707" Media Type : Cellulose Style : Spin-On Lube Filter Thread Size (Inches) : 3/4-16 Burst Pressure : 325 psi Filter O.D. (mm) : 74 mm Gasket I.D. (mm) : 61 mm Gasket O.D. (mm) : 69 mm Gasket Thickness (mm) : 6 mm Height (mm) : 68 mm