Pure Power Lifetime Filters PP8431 OE Replacement Spin-On Lifetime Oil Filter with Emergency Relief Valve Clean it and reuse it; never throw it away Maximize fuel mileage while improving horsepower 6061 billet aluminum canister with stainless steel filter media Improved debris removal; nominal micron extraction rating (1 micron) Multiple US utility patents; proudly made in USA (ISO 9001:2008)