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. Attributes Filter O.D. (Inches) : 3.778" Flow Rate : 28 To 30 gpm Gasket I.D. (Inches) : 3.2" Gasket O.D. (Inches) : 3.725" Gasket Thickness (Inches) : .35" Height (Inches) : 5.962" Media Type : Cellulose Style : Spin-On Lube Filter Thread Size (Inches) : 1 1/2-16 Filter O.D. (mm) : 96 mm Gasket I.D. (mm) : 81 mm Gasket O.D. (mm) : 95 mm Gasket Thickness (mm) : 9 mm Height (mm) : 151 mm