FRAM Extra Guard PH3387A, 10K Mile Change Interval Spin-On Oil Filter PRODUCT SPECS Height 3.359 Inside Diameter 18mmx1.5mm Th'd Outside Diameter 2.984 Anti-Drainback Valve YES By-Pass Valve Setting NONE Turning Specification 3/4-1 Base Gasket I.D. 2.469 Base Gasket O.D. 2.75 Base Gasket Thickness 0.188 Good for all oil types. A special blend of fibers and resin creates a proprietary filter media that captures 95% of the dirt particles that can cause harmful engine wear. Start-up engine protection is delivered through a precision molded silicone anti drain back valve. The perfect balance of dirt-trapping efficiency and dirt-holding capacity. Sure Grip coating provides a non-slip finish for easier installation and removal. Engineered for conventional and synthetic oil types. Internally lubricated sealing gasket for easier filter removal. FRAM Extra Guard provides the perfect balance of dirt-trapping efficiency and dirt-holding capacity.